题目内容

I have problems. ()I cannot fall into sleep.

A. or
B. and

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He was ill. ( )He went to work.

A. and
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Get up soon. （）You will be late.

A. or
B. and
C. but
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I woke up. ( )I got off the bed.

A. but
B. and
C. or
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某工程机械公司专门向建筑业用户供应推土机、打桩机、起重机、水泥搅拌机等建筑工程中所需要的机械设备，这是一种（_）策略。

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D. 产品专门化