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Mua vip
LQ
Lê Quỳnh Anh
25 tháng 10 2019

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 43 to 50.

Orchids are unique in having the most highly developed of all blossoms, in which the usual male and female reproductive organs are fused in a single structure called the column. The column is designed so that a single pollination will fertilize hundreds or thousands, and in some cases millions, of seeds, so microscopic and light they are easily carried by the breeze. Surrounding the column are three sepals and three petals, sometimes easily recognizable as such, often distorted into gorgeous, weird, but always functional shapes. The most noticeable of the petals is called the labellum, or lip. It is often dramatically marked as an unmistakable landing strip to attract the specific insect the orchid has chosen as its pollinator.

To lure their pollinators from afar, orchids use appropriately intriguing shapes, colors, and scents. At least 50 different aromatic compounds have been analyzed in the orchid family, each blended to attract one, or at most a few, species of insects or birds. Some orchids even change their scents to interest different insects at different times.

Once the right insect has been attracted, some orchids present all sorts of one-way obstacle courses to make sure it does not leave until pollen has been accurately placed or removed. By such ingenious adaptations to specific pollinators, orchids have avoided the hazards of rampant crossbreeding in the wild, assuring the survival of species as discrete identities. At the same time they have made themselves irresistible to collectors.

What does the passage mainly discuss?

A. Birds

B. Insects

C. Flowers

D. Perfume
#Mẫu giáo
1
DH
Dương Hoàn Anh
25 tháng 10 2019

Đáp án C

Giải thích: Bài đọc xoay quanh một loài hoa đó là hoa lan (orchids). Do đó thứ mà bài đọc chủ yếu đề cập đến là phương án C. Flowers = các loài hoa.

          A. Birds (n) = các loài chim

          B. Insects (n) = các loài côn trùng

          D. Perfume (n) = nước hoa

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LQ
Lê Quỳnh Anh
17 tháng 3 2019
Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 43 to 50Orchids are unique in having the most highly developed of all blossoms, in which the usual male and female reproductive organs are fused in a single structure called the column. The column is designed so that a single pollination will fertilize hundreds or thousands, and in some cases millions, of seeds, so microscopic and light they are easily...
Đọc tiếp

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 43 to 50

Orchids are unique in having the most highly developed of all blossoms, in which the usual male and female reproductive organs are fused in a single structure called the column. The column is designed so that a single pollination will fertilize hundreds or thousands, and in some cases millions, of seeds, so microscopic and light they are easily carried by the breeze. Surrounding the column are three sepals and three petals, sometimes easily recognizable as such, often distorted into gorgeous, weird, but always functional shapes. The most noticeable of the petals is called the labellum, or lip. It is often dramatically marked as an unmistakable landing strip to attract the specific insect the orchid has chosen as its pollinator.

To lure their pollinators from afar, orchids use appropriately intriguing shapes, colors, and scents. At least 50 different aromatic compounds have been analyzed in the orchid family, each blended to attract one, or at most a few, species of insects or birds. Some orchids even change their scents to interest different insects at different times.

Once the right insect has been attracted, some orchids present all sorts of one-way obstacle courses to make sure it does not leave until pollen has been accurately placed or removed. By such ingenious adaptations to specific pollinators, orchids have avoided the hazards of rampant crossbreeding in the wild, assuring the survival of species as discrete identities. At the same time they have made themselves irresistible to collectors

The word "fused" in line 2 is closest in meaning to

A. combined

B. hidden

C. fertilized

D. produced
#Mẫu giáo
1
DH
Dương Hoàn Anh
17 tháng 3 2019

Đáp án A

Giải thích: Fuse (v) = gộp lại

                    Combine (v) = kết hợp lại, gộp lại

Dịch nghĩa: … the usual male and female reproductive organs are fused in a single structure called the column = … cơ quan sinh dục đực và cái bình thường được hợp nhất thành một cơ cấu trúc duy nhất được gọi là trụ nhụy.

          B. hidden (v) = được giấu đi

          C. fertilized (v) = được thụ thai / làm phì nhiêu, làm phong phú

          D. produced (v) = được sản xuất ra

Đúng(0)
LQ
Lê Quỳnh Anh
19 tháng 10 2019
Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 43 to 50.Orchids are unique in having the most highly developed of all blossoms, in which the usual male and female reproductive organs are fused in a single structure called the column. The column is designed so that a single pollination will fertilize hundreds or thousands, and in some cases millions, of seeds, so microscopic and light they are easily...
Đọc tiếp

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 43 to 50.

Orchids are unique in having the most highly developed of all blossoms, in which the usual male and female reproductive organs are fused in a single structure called the column. The column is designed so that a single pollination will fertilize hundreds or thousands, and in some cases millions, of seeds, so microscopic and light they are easily carried by the breeze. Surrounding the column are three sepals and three petals, sometimes easily recognizable as such, often distorted into gorgeous, weird, but always functional shapes. The most noticeable of the petals is called the labellum, or lip. It is often dramatically marked as an unmistakable landing strip to attract the specific insect the orchid has chosen as its pollinator.

To lure their pollinators from afar, orchids use appropriately intriguing shapes, colors, and scents. At least 50 different aromatic compounds have been analyzed in the orchid family, each blended to attract one, or at most a few, species of insects or birds. Some orchids even change their scents to interest different insects at different times.

Once the right insect has been attracted, some orchids present all sorts of one-way obstacle courses to make sure it does not leave until pollen has been accurately placed or removed. By such ingenious adaptations to specific pollinators, orchids have avoided the hazards of rampant crossbreeding in the wild, assuring the survival of species as discrete identities. At the same time they have made themselves irresistible to collectors.

The labellum (line 6) is most comparable to

A. a microscope

B. an obstacle course 

C. an airport runway 

D. a racetrack
#Mẫu giáo
1
DH
Dương Hoàn Anh
19 tháng 10 2019

Đáp án C

Thông tin: It is often dramatically marked as an unmistakable landing strip to attract the specific insect the orchid has chosen as its pollinator.

Dịch nghĩa: Nó thường được đánh dấu một cách rõ ràng như một đường băng không thể nhầm lẫn để thu hút loài côn trùng cụ thể mà những cây lan đã chọn như là loài thụ phấn của nó.

Phương án C. an airport runway = một đường băng sân bay; là phương án chính xác nhất.

          A. a microscope = một chiếc kính hiển vi

          B. an obstacle course = một khóa học trở ngại

          D. a racetrack = một đường đua

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LQ
Lê Quỳnh Anh
9 tháng 4 2019
Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 43 to 50.Orchids are unique in having the most highly developed of all blossoms, in which the usual male and female reproductive organs are fused in a single structure called the column. The column is designed so that a single pollination will fertilize hundreds or thousands, and in some cases millions, of seeds, so microscopic and light they are easily...
Đọc tiếp

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 43 to 50.

Orchids are unique in having the most highly developed of all blossoms, in which the usual male and female reproductive organs are fused in a single structure called the column. The column is designed so that a single pollination will fertilize hundreds or thousands, and in some cases millions, of seeds, so microscopic and light they are easily carried by the breeze. Surrounding the column are three sepals and three petals, sometimes easily recognizable as such, often distorted into gorgeous, weird, but always functional shapes. The most noticeable of the petals is called the labellum, or lip. It is often dramatically marked as an unmistakable landing strip to attract the specific insect the orchid has chosen as its pollinator.

To lure their pollinators from afar, orchids use appropriately intriguing shapes, colors, and scents. At least 50 different aromatic compounds have been analyzed in the orchid family, each blended to attract one, or at most a few, species of insects or birds. Some orchids even change their scents to interest different insects at different times.

Once the right insect has been attracted, some orchids present all sorts of one-way obstacle courses to make sure it does not leave until pollen has been accurately placed or removed. By such ingenious adaptations to specific pollinators, orchids have avoided the hazards of rampant crossbreeding in the wild, assuring the survival of species as discrete identities. At the same time they have made themselves irresistible to collectors.

How many orchid seeds are typically pollinated at one time?

A. 200

B. 2,000

C. 20,000

D. 200,000
#Mẫu giáo
1
DH
Dương Hoàn Anh
9 tháng 4 2019

Đáp án D

Thông tin: The column is designed so that a single pollination will fertilize hundreds or thousands, and in some cases millions, of seeds

Dịch nghĩa: Trụ nhụy được thiết kế để cho một hạt phấn duy nhất sẽ thụ tinh cho hàng trăm hoặc hàng ngàn, và trong một số trường hợp hàng triệu, hạt giống

Từ thông tin trên, phương án D. 200,000 là phương án chính xác nhất. Các phương án còn lại đưa ra con số quá nhỏ.

Đúng(0)
LQ
Lê Quỳnh Anh
1 tháng 1 2017
Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 43 to 50.Orchids are unique in having the most highly developed of all blossoms, in which the usual male and female reproductive organs are fused in a single structure called the column. The column is designed so that a single pollination will fertilize hundreds or thousands, and in some cases millions, of seeds, so microscopic and light they are easily...
Đọc tiếp

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 43 to 50.

Orchids are unique in having the most highly developed of all blossoms, in which the usual male and female reproductive organs are fused in a single structure called the column. The column is designed so that a single pollination will fertilize hundreds or thousands, and in some cases millions, of seeds, so microscopic and light they are easily carried by the breeze. Surrounding the column are three sepals and three petals, sometimes easily recognizable as such, often distorted into gorgeous, weird, but always functional shapes. The most noticeable of the petals is called the labellum, or lip. It is often dramatically marked as an unmistakable landing strip to attract the specific insect the orchid has chosen as its pollinator.

To lure their pollinators from afar, orchids use appropriately intriguing shapes, colors, and scents. At least 50 different aromatic compounds have been analyzed in the orchid family, each blended to attract one, or at most a few, species of insects or birds. Some orchids even change their scents to interest different insects at different times.

Once the right insect has been attracted, some orchids present all sorts of one-way obstacle courses to make sure it does not leave until pollen has been accurately placed or removed. By such ingenious adaptations to specific pollinators, orchids have avoided the hazards of rampant crossbreeding in the wild, assuring the survival of species as discrete identities. At the same time they have made themselves irresistible to collectors.

The orchid is unique because of_________

A. the habitat in which it lives

B. the structure of its blossom

C. the variety of products that can be made from it

D. the length of its life
#Mẫu giáo
1
DH
Dương Hoàn Anh
1 tháng 1 2017

Đáp án B

Thông tin: Orchids are unique in having the most highly developed of all blossoms, in which the usual male and female reproductive organs are fused in a single structure called the column.

Dịch nghĩa: Hoa lan là duy nhất trong việc có bông hoa được phát triển cao nhất trong tất cả các loài hoa, trong đó cơ quan sinh dục đực và cái bình thường được hợp nhất thành một cơ cấu trúc duy nhất được gọi là trụ nhụy.

Phương án B. the structure of its blossom = cấu trúc của bông hoa của nó; là phương án chính xác nhất.

          A. the habitat in which it lives = môi trường trong đó nó sống

          C. the variety of products that can be made from it = sự đa dạng của các sản phẩm có thể làm từ nó.

          D. the length of its life = độ dài cuộc sống của nó.

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LQ
Lê Quỳnh Anh
1 tháng 7 2017
Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 43 to 50.Orchids are unique in having the most highly developed of all blossoms, in which the usual male and female reproductive organs are fused in a single structure called the column. The column is designed so that a single pollination will fertilize hundreds or thousands, and in some cases millions, of seeds, so microscopic and light they are easily...
Đọc tiếp

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 43 to 50.

Orchids are unique in having the most highly developed of all blossoms, in which the usual male and female reproductive organs are fused in a single structure called the column. The column is designed so that a single pollination will fertilize hundreds or thousands, and in some cases millions, of seeds, so microscopic and light they are easily carried by the breeze. Surrounding the column are three sepals and three petals, sometimes easily recognizable as such, often distorted into gorgeous, weird, but always functional shapes. The most noticeable of the petals is called the labellum, or lip. It is often dramatically marked as an unmistakable landing strip to attract the specific insect the orchid has chosen as its pollinator.

To lure their pollinators from afar, orchids use appropriately intriguing shapes, colors, and scents. At least 50 different aromatic compounds have been analyzed in the orchid family, each blended to attract one, or at most a few, species of insects or birds. Some orchids even change their scents to interest different insects at different times.

Once the right insect has been attracted, some orchids present all sorts of one-way obstacle courses to make sure it does not leave until pollen has been accurately placed or removed. By such ingenious adaptations to specific pollinators, orchids have avoided the hazards of rampant crossbreeding in the wild, assuring the survival of species as discrete identities. At the same time they have made themselves irresistible to collectors.

Which of the following is a kind of petal?

A. The column

B. The sepal

C. The stem

D. The labellum
#Mẫu giáo
1
DH
Dương Hoàn Anh
1 tháng 7 2017

Đáp án D

Thông tin: The most noticeable of the petals is called the labellum, or lip.

Dịch nghĩa: Đáng chú ý nhất trong những cánh hoa được gọi là cánh môi, hay môi.

Như vậy “labellum” là một loại cánh hoa. Phương án D. The labellum = cánh môi, là phương án chính xác nhất.

          A. The column = trụ nhụy

… the usual male and female reproductive organs are fused in a single structure called the column = … cơ quan sinh dục đực và cái bình thường được hợp nhất thành một cơ cấu trúc duy nhất được gọi là trụ nhụy.

Như vậy trụ nhụy là cơ quan sinh dục của hoa chứ không phải cánh hoa.

          B. The sepal = lá đài

Surrounding the column are three sepals and three petals = Xung quanh trụ nhụy là ba lá đài và ba cánh hoa.

“sepal” và “petal” là hai khái niệm được tách hẳn nhau ra, do đó lá đài không phải một loại cánh hoa.

          C. The stem = rễ cây

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LQ
Lê Quỳnh Anh
23 tháng 8 2019
Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 43 to 50.Orchids are unique in having the most highly developed of all blossoms, in which the usual male and female reproductive organs are fused in a single structure called the column. The column is designed so that a single pollination will fertilize hundreds or thousands, and in some cases millions, of seeds, so microscopic and light they are easily...
Đọc tiếp

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 43 to 50.

Orchids are unique in having the most highly developed of all blossoms, in which the usual male and female reproductive organs are fused in a single structure called the column. The column is designed so that a single pollination will fertilize hundreds or thousands, and in some cases millions, of seeds, so microscopic and light they are easily carried by the breeze. Surrounding the column are three sepals and three petals, sometimes easily recognizable as such, often distorted into gorgeous, weird, but always functional shapes. The most noticeable of the petals is called the labellum, or lip. It is often dramatically marked as an unmistakable landing strip to attract the specific insect the orchid has chosen as its pollinator.

To lure their pollinators from afar, orchids use appropriately intriguing shapes, colors, and scents. At least 50 different aromatic compounds have been analyzed in the orchid family, each blended to attract one, or at most a few, species of insects or birds. Some orchids even change their scents to interest different insects at different times.

Once the right insect has been attracted, some orchids present all sorts of one-way obstacle courses to make sure it does not leave until pollen has been accurately placed or removed. By such ingenious adaptations to specific pollinators, orchids have avoided the hazards of rampant crossbreeding in the wild, assuring the survival of species as discrete identities. At the same time they have made themselves irresistible to collectors.

The word "discrete" in line 13 is closest in meaning to

A. complicated

B. separate

C. inoffensive

D. functional
#Mẫu giáo
1
DH
Dương Hoàn Anh
23 tháng 8 2019

Đáp án B

Giải thích: Discrete (adj) = gián đoạn, đứt đoạn

                    Separate (adj) = riêng biệt, tách rời

Dịch nghĩa: By such ingenious adaptations to specific pollinators, orchids have avoided the hazards of rampant crossbreeding in the wild, assuring the survival of species as discrete identities. = Bằng cách thích nghi khéo léo như vậy đến loài thụ phấn cụ thể, hoa lan đã tránh được những nguy hiểm của việc lai giống tràn lan trong tự nhiên, đảm bảo sự tồn tại của các loài như bản sắc riêng biệt.

          A. complicated (adj) = phức tạp

          C. inoffensive (adj) = không mang tính xúc phạm

          D. functional (adj) = chức năng

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LQ
Lê Quỳnh Anh
4 tháng 10 2019
Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 43 to 50.Orchids are unique in having the most highly developed of all blossoms, in which the usual male and female reproductive organs are fused in a single structure called the column. The column is designed so that a single pollination will fertilize hundreds or thousands, and in some cases millions, of seeds, so microscopic and light they are easily...
Đọc tiếp

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 43 to 50.

Orchids are unique in having the most highly developed of all blossoms, in which the usual male and female reproductive organs are fused in a single structure called the column. The column is designed so that a single pollination will fertilize hundreds or thousands, and in some cases millions, of seeds, so microscopic and light they are easily carried by the breeze. Surrounding the column are three sepals and three petals, sometimes easily recognizable as such, often distorted into gorgeous, weird, but always functional shapes. The most noticeable of the petals is called the labellum, or lip. It is often dramatically marked as an unmistakable landing strip to attract the specific insect the orchid has chosen as its pollinator.

To lure their pollinators from afar, orchids use appropriately intriguing shapes, colors, and scents. At least 50 different aromatic compounds have been analyzed in the orchid family, each blended to attract one, or at most a few, species of insects or birds. Some orchids even change their scents to interest different insects at different times.

Once the right insect has been attracted, some orchids present all sorts of one-way obstacle courses to make sure it does not leave until pollen has been accurately placed or removed. By such ingenious adaptations to specific pollinators, orchids have avoided the hazards of rampant crossbreeding in the wild, assuring the survival of species as discrete identities. At the same time they have made themselves irresistible to collectors.

The word "their" in line 10 refers to.

A. orchids

B. birds

C. insects

D. species
#Mẫu giáo
1
DH
Dương Hoàn Anh
4 tháng 10 2019

Đáp án A

Thông tin: Some orchids even change their scents to interest different insects at different times.

Dịch nghĩa: Một số loài hoa lan thậm chí thay đổi mùi hương của chúng để làm quan tâm đến các loài côn trùng khác nhau vào những thời điểm khác nhau.

Như vậy từ “their” là tính từ sở hữu tương ứng của danh từ “some orchids”. Phương án A. orchids = các loài hoa, là phương án chính xác nhất.

          B. birds (n) = các loài chim

             C. insects (n) = các loài côn trùng          

          D. species (n) = các loài sinh vật

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LQ
Lê Quỳnh Anh
27 tháng 9 2017
Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 38 to 42. Some people think that a spider is an insect, but it is an arachnid. Arachnids have two main body parts and eight walking legs while insects have three main body parts and six legs. Many insects can fly, but spiders cannot fly. There are many different kinds of spiders around the world. They come in different colors, such as black, brown,...
Đọc tiếp

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 38 to 42.

Some people think that a spider is an insect, but it is an arachnid. Arachnids have two main body parts and eight walking legs while insects have three main body parts and six legs. Many insects can fly, but spiders cannot fly.

There are many different kinds of spiders around the world. They come in different colors, such as black, brown, white, yellow, and orange. Spiders usually live for one year but a spider called the Tarantula lives as long as 20 years. Some spiders are very small but some are so large they can fit a dinner plate.

The most unusual thing is that a spider can spin a web. Spiders have silk in their stomach and they use the silk to make a web. The web is the spider's home. But the spider does not stick to its own web because its legs have oil them. It is very strong and sticky. The web is used to catch insects. When an insect is trapped on a spider's web, the spider wraps the insect in silk. It eats the insect at a later time. However, the spider does not really eat it. Since it has no teeth, it puts venom in the insect to make it a liquid.

All of the following are true EXCEPT that _________. 

A. spiders have a different body structure from that of insects. 

B. spiders have various colors and mostly live for a year. 

C. special spiders can spin a web and catch insects by it. 

D. spiders use poisons to make their food into a liquid. 
#Mẫu giáo
1
DH
Dương Hoàn Anh
27 tháng 9 2017

Đáp án C

Kiến thức: Đọc hiểu

Giải thích:

Tất cả những điều sau đây là đúng NGOẠI TRỪ _________.

  A. nhện có cấu trúc cơ thể khác với côn trùng.

  B. nhện có nhiều màu sắc khác nhau và chủ yếu sống trong một năm.

  C. nhện đặc biệt có thể quay một mạng nhện và bắt côn trùng bằng nó.

  D. nhện sử dụng chất độc để biến thức ăn của chúng thành chất lỏng.

Thông tin: Some people think that a spider is an insect, but it is an arachnid.

Tạm dịch: Một số người nghĩ rằng một con nhện là một loài côn trùng, nhưng nó là một loài nhện. 

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LQ
Lê Quỳnh Anh
24 tháng 4 2017
Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the questions from 36 to 42 Bees, classified into over 10,000 species, are insects found in almost every part of the world except the northernmost and southernmost regions. One commonly known species is the honeybee, the only bee that produces honey and wax. Humans use the wax in making candles, lipsticks, and other products, and they use the honey as a substance that...
Đọc tiếp

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the questions from 36 to 42

Bees, classified into over 10,000 species, are insects found in almost every part of the world except the northernmost and southernmost regions. One commonly known species is the honeybee, the only bee that produces honey and wax. Humans use the wax in making candles, lipsticks, and other products, and they use the honey as a substance that people eat to maintain life and growth. While gathering the nectar and pollen with which they make honey, bees are simultaneously helping to fertilize the flowers on which they land. Many fruits and vegetables would not survive if bees did not carry the pollen from blossom to blossom.

Bees live in a structured environment and social structure within a hive, which is a nest with storage space for the honey. The different types of bees each perform a unique function. The worker bee carries nectar to hive in a special stomach called a honey stomach. Other workers make beeswax and shape it into a honeycomb, which is a waterproof mass of six-sided compartments, or cells. The queen lays eggs in completed cells. As the workers build more cells, the queen lays more eggs.

All workers, like the queen, are female, but the workers are smaller than the queen. The male honeybees are called drones; they do no work and cannot sting. They are developed from unfertilized eggs, and their only job is to impregnate a queen. The queen must be fertilized in order to lay more worker eggs. During the season when less honey is available and the drone is of no further use, the workers block the drones from eating the honey so that they will starve to death

According to the passage, honey is carried to the hive in a honey stomach by the ______________

A. workers

B. drones

C. males

D. queens
#Mẫu giáo
1
DH
Dương Hoàn Anh
24 tháng 4 2017

Đáp án A

Theo đoạn văn, mật ong được mang đến tổ ong trong dạ dày mật ong bởi ______________

A. ong thợ

B. ong mật đực

C. ong đực

D. nữ hoàng

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