题目内容

瞬时速率就是瞬时速度的大小。

A. 对
B. 错

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The stranger you saw_____with a big travelling -bag stayed in Room 104 yesterday.

A. to come in
B. come in
C. has come in
D. who came in

-- What did you mean by saying that? -- I mean no harm. I only____.

A. meant helping
B. want to help
C. meant of help
D. want helping

I never expected the shoes_____.

A. wearing out
B. to be worn out
C. to have worn out
D. being worn out

You must learn_____.

A. that your time needs a wise use
B. how to make lest of your time
C. to make wise use of your time
D. wise ways to use your time

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