What does he say about his father?
A. He's from England.
B. He has lots of good stories.
C. He is currently a pilot.
D. He is healthy now.
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What does he say about his mother?
A. She was a stewardess.
B. She met his father at work.
C. His sister wants to a stewardess.
D. His sister is a stewardess.
What does he say about his sister?
A. She has more freedom than he did.
B. She is a lot like him.
C. She likes art.
D. She likes cars.
所设计孔、轴配合中的孔和轴加工后，经测量合格的某一实际孔与某一实际轴在装配后得到了间隙，则设计配合
A. 一定是间隙配合
B. 一定是过盈配合
C. 一定是过渡配合
D. 可能是间隙配合也可能是过渡配合
Φ30g6和Φ30g7两者的区别在于
A. 基本偏差不同
B. 下偏差相同，而上偏差不同
C. 上偏差相同，而下偏差不同
D. 公差值相同
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