Irregular signs shown by “body clock - 考试宝

单选题 Irregular signs shown by “body clocks” may serve as a warning of

A、 the breakup of the body clock

B、 possible illnesses

C、 diffculty in sleeping

D、 growing old

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A、one tenth

B、one millionth

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D、a very small portion

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A、working in a bank

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A、Selling and Buying.

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A、plants

B、water

C、rock

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A、rain

B、coal

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A、Gasoline

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B、absorbed by the earth's atmosphere

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