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Câu hỏi:

22/07/2024 189

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 31 to 35.

The term "virus" is derived from the Latin word for poison or slime. It was originally applied to the noxious stench emanating from swamps that was thought to cause a variety of diseases in the centuries before microbes were discovered and specifically linked to illness. But it was not until almost the end of the nineteenth century that a true virus was proven to be the cause of a disease.

The nature of viruses made them impossible to detect for many years even after bacteria had been discovered and studied. Not only are viruses too small to be seen with a light microscope, they also cannot be detected through their biological activity, except as it occurs in conjunction with other organisms. In fact, viruses show no traces of biological activity by themselves. Unlike bacteria, they are not living agents in the strictest sense. Viruses are very simple pieces of organic material composed only of nucleic acid, either DNA or RNA, enclosed in a coat of protein made up of simple structural units. (Some viruses also contain carbohydrates and lipids.) They are parasites, requiring human, animal, or plant cells to live. The virus replicates by attaching to a cell and injecting its nucleic acid.’ once inside the cell, the DNA or RNA that contains the virus' genetic information takes over the cell's biological machinery, and the cell begins to manufacture viral proteins rather than its own.

All of the following may be components of a virus EXCEPT____________.

A. RNA

B. plant cells

Đáp án chính xác

C. carbohydrates

D. a coat of protein

 Xem lời giải

Trả lời:

verified Giải bởi Vietjack

Đáp án B

Thông tin trong bài: "Viruses are very simple pieces of organic material composed only of nucleic acid, either DNA or RNA, enclosed in a coat of protein made up of simple structural units. Some viruses also contain carbohydrates and lipids..."

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Câu 1:

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks from 26 to 30.

An important part of building independence is allowing your teenagers to do things for themselves, (26) ____________their own decisions, and make mistakes. These are natural processes in life and people are wired to desire autonomy early in life. This need for early independence is designed to prepare individuals for adulthood. Allowing your children to become independent earlier in life can (27) ____________rebellion during the later stages of the teenage years. All teenagers have a need to express their individuality. Teenagers (28) ____________are not allowed to express their individuality are more likely to revolt.

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Câu 2:

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks from 26 to 30.

An important part of building independence is allowing your teenagers to do things for themselves, (26) ____________their own decisions, and make mistakes. These are natural processes in life and people are wired to desire autonomy early in life. This need for early independence is designed to prepare individuals for adulthood. Allowing your children to become independent earlier in life can (27) ____________rebellion during the later stages of the teenage years. All teenagers have a need to express their individuality. Teenagers (28) ____________are not allowed to express their individuality are more likely to revolt.

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Câu 3:

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks from 26 to 30.

An important part of building independence is allowing your teenagers to do things for themselves, (26) ____________their own decisions, and make mistakes. These are natural processes in life and people are wired to desire autonomy early in life. This need for early independence is designed to prepare individuals for adulthood. Allowing your children to become independent earlier in life can (27) ____________rebellion during the later stages of the teenage years. All teenagers have a need to express their individuality. Teenagers (28) ____________are not allowed to express their individuality are more likely to revolt.

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Câu 4:

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks from 26 to 30.

An important part of building independence is allowing your teenagers to do things for themselves, (26) ____________their own decisions, and make mistakes. These are natural processes in life and people are wired to desire autonomy early in life. This need for early independence is designed to prepare individuals for adulthood. Allowing your children to become independent earlier in life can (27) ____________rebellion during the later stages of the teenage years. All teenagers have a need to express their individuality. Teenagers (28) ____________are not allowed to express their individuality are more likely to revolt.

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Câu 5:

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Câu 6:

Mark the letter A, B, C, or D on your answer sheet to indicate the option that best completes each of the following exchanges

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Hoa: "Our final exams will start next Friday. Are you ready?" - Nam:" ____________"

 

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Câu 7:

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

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Of all these experts, none excelled the Porno - a group who lived on or near the coast during the 1800's, and whose descendants continue to live in parts of the same region to this day. They made baskets three feet in diameter and others no bigger than a thimble. The Pomo people were masters of decoration. Some of their baskets were completely covered with shell pendants; others with feathers that made the baskets' surfaces as soft as the breasts of birds. Moreover, the Pomo people made use of more weaving techniques than did their neighbors. Most groups made all their basketwork by twining - the twisting of a flexible horizontal material, called a weft, around stiffer vertical strands of material, the warp, others depended primarily on coiling - a process in which a continuous coil of stiff material is held in the desired shape with tight wrapping of flexible strands. Only the Pomo people used both processes with equal ease and frequency. In addition, they made use of four distinct variations on the basic twining process, often employing more than one of them in a single article.

Although a wide variety of materials was available, the Pomo people used only a few. The warp was always made of willow, and the most commonly used weft was sedge root, a woody fiber that could easily be separated into strands no thicker than a thread. For color, the Pomo people used the bark of redbud for their twined work and dyed bulrush root for black in coiled work. Though other materials were sometimes used, these four were the staples in their finest basketry.

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Câu 8:

Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that is closest in meaning to each of the following questions

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Câu 9:

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 31 to 35.

The term "virus" is derived from the Latin word for poison or slime. It was originally applied to the noxious stench emanating from swamps that was thought to cause a variety of diseases in the centuries before microbes were discovered and specifically linked to illness. But it was not until almost the end of the nineteenth century that a true virus was proven to be the cause of a disease.

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Mark the letter A, B, C, or D on your answer sheet to indicate the word(s) OPPOSITE in meaning to the underlined word(s) in each of the following questions

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