题目内容

在迈克尔逊干涉实验中,粗调鼓轮能精确到( )

A. 0.1mm
B. 0.01mm
C. 0.001mm
D. 0.0001mm

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Match the questions and statement to the responses.

Match Chinese with the English.

The students ______ have a sports meeting this weekend if it ______.

A. won’t; rains
B. will; rains
C. won’t; will rain
D. are going to; is going to rain

—We can help you ______ you need.—It’s very kind of you.

A. though
B. if
C. until
D. because

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