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【单选题】

Scientists have created the world’s smallest 'snowman',_____ about a fifth of the width of a human hair.

A.
measures
B.
measuring
C.
measured
D.
to measure
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参考答案:
参考解析:
.
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举一反三

【单选题】The government tried its best to _____ the people's needs, but the people were still not ______. In fact, what the government did was not______. [ ]

A.
satisfy; satisfied; satisfying
B.
satisfy; satisfying; satisfied
C.
satisfied; satisfied; satisfying
D.
satisfying; satisfied; satisfied

【单选题】It is important for the websites _______ regularly.[ ]

A.
to be updated
B.
to have been updated
C.
to update
D.
to have updated