题目内容

当蜗轮或蜗杆齿面磨损超过原齿厚的()时,应更换

A. 10%
B. 20%
C. 30%
D. 40%

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______youve found, you must give it back to the owner.

A. Whichever
B. What
C. Whatever
D. Which

His friends______him of having broken his words.

A. denounced
B. complained
C. accused
D. charged

按照孔、轴的配合情况,当轴的公差带在孔的公差带之下时属于()

A. 间隙配合
B. 过盈配合
C. 过渡配合
D. 普通配合

Have you any other reasons______the one you just mentioned above?

A. in addition to
B. beside
C. off
D. at addition with

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