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600 Bài tập trắc nghiệm Tiếng Anh 12 mới

In lines 17-18, the author mentions the "expansion of halite crystals...by heating and of sulfates and similar salts by hydration" in order to A. present an alternative theory about crystal


Câu hỏi:

In lines 17-18, the author mentions the "expansion of halite crystals...by heating and of sulfates and similar salts by hydration" in order to
A. present an alternative theory about crystal growth
B. explain how some rocks are not affected by salt
C. simplify the explanation of crystal prying and wedging
D. introduce additional means by which crystals destroy rocks

Trả lời:

Lời giải:

Đáp án: C

5. Thông tin: Besides crystal growth, the expansion of halite crystals (the same as everyday table salt) by heating and of sulfates and similar salts by hydration can contribute additional stresses.

Xem thêm bài tập Tiếng anh có lời giải hay khác:

Câu 1:

Mark the letter A, B, C or D to indicate the word(s) CLOSEST in meaning to the underlined word(s) in each of the following questions.

The changing physical landscape reflected the shift to an urbanized society. Railroad terminals, factories, skyscrapers, apartment houses, streetcars, electric engines, department stores, and the increased pace of life were all signs of an emerging urban America.

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Câu 2:

My father said to me “Why are you late? Did you miss the train?”

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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 answer to each of the questions from 39 to 46.            

Because writing has become so important in our culture, we sometimes think of it as more real than speech. A little thought, however, will show why speech is primary and writing secondary to language. Human beings have been writing (as far as we can tell from surviving evidence) for at least 5000 years; but they have been talking for much longer, doubtless ever since there have been human beings.           

When writing did develop, it was derived from and represented speech, although imperfectly. Even today there are spoken languages that have no written form. Furthermore, we all learn to talk well before we learn to write; any human child who is not severely handicapped physically or mentally will learn to talk: a normal human being cannot be prevented from doing so. On the other hand, it takes a special effort to learn to write. In the past many intelligent and useful members of society did not acquire the skill, and even today many who speak languages with writing systems never learn to read or write, while some who learn the rudiments of those skills do so only imperfectly.           

To affirm the primacy of speech over writing is not, however, to disparage the latter. One advantage writing has over speech is that it is more permanent and makes possible the records that any civilization must have. Thus, if speaking makes us human, writing makes us civilized.

We sometimes think of writing as more real than speech because ______.

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Câu 4:

The author of the passage argues that ______.

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Câu 5:

The word "durable" in line 19 is closest in meaning to

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Câu 6:

The word "shattered" in line 20 is closest in meaning to

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Câu 7:

The word "dominant" in line 22 is closest in meaning to

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Câu 8:

According to the passage, which of the following is true about the effects of salts on rocks?

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