皮皮学，免费搜题
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【单选题】
在同一尺寸段内,尽管基本尺寸不同,但只要公差等级相同,其标准公差值就A.
可能相同
B.
一定相同
C.
一定不同
D.
无法判断
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A.
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【单选题】I hope that our talk has given you some insights __the kind of work that we’ve been doing .
A.
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【单选题】What is the main idea of the passage?
A.
An Oxford graduate who wants to help.
B.
How education can change a person's life.
C.
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D.
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