题目内容

This dictionary is of great use, which can help you ________ many problems about words and idioms．

[　　]

A．keep up

B．clear up

C．look up

D．take up

答案：B
解析：

clear up意为“解决”、“解答”；而keep up、和take up分别表“保持”和“从事”之意；look up虽表“查阅”之意，但其主语应为人，所以，A、C、D均不合题意。

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2. B.
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3. C.
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4. D.
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1. A.
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2. B.
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3. C.
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4. D.
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4.
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1. A.
  The new SAT scoring.
2. B.
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3. C.
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