单选题：Public policy and education efforts may help to do away wit

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题目内容：

Public policy and education efforts may help to do away with__________. A．death rates.
B．various cancers.
C．unfair social differences.
D．biological differences.

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Cancer is more treatable if it is detected__________.A．in an early stage. B．in a

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In Paragraph 4 the writer implies that fertile soils are __

In Paragraph 4 the writer implies that fertile soils are __________.A．limited.

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According to the passage, who has / have the legal responsi

According to the passage, who has / have the legal responsibility to decide on

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In the sentence "What is its motive behind it?" ( Paragraph 5), "it" refers to

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He has a very good personality and makes a lot of friends.

He has a very good personality and makes a lot of friends.A．capacity B．characte

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