题目内容

6%的交换值意味着()。

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喷油泵柱塞偶件的配合间隙为()。

A. 0.01~0.02mm
B. 0.003~0.005mm
C. 0.03~0.05mm
D. 0.001~0.002mm

I’d love to have a break, but I can't () the time now.

A. spare
B. spend
C. speak

The teacher showed the students () the laboratory.

A. on
B. at
C. around

It is very important for us to find a () between work life and home life.

A. way
B. balance
C. blank

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