题目内容
在间隙配合中，可能出现零间隙的状态。此时孔的实际尺寸等于轴的实际尺寸，而在过渡配合中，绝不可能出现零间隙的状态。
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某一零件的实际尺寸正好等于其基本尺寸，则这尺寸肯定合格
[音频]1. One week after they killed the Paris shooters, Frenchpolice are still rounding up suspects. French media say police picked up a dozen people.
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3. He grew up watching his parents, grandparents and neighbors communingwith the land as if it were a living thing.
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