【填空题】【消耗次数：1】
[填空1] 是度量力使物体在平面内绕一点转动的效果。
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【填空题】
[填空1] 定理是指平面汇交力系的合力对平面内任一点的矩，等于所有各分力对同一点的矩的代数和。
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Who are you
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Thats all right
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All right
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Not at all
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Its very kind of you to say so
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Yes, very good
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No, not good
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A: Will you please give the note to him? B: [填空].
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No，please not
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Certainly，Ill give it to him
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A: Hello, may I talk to the headmaster now? B: [填空].
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Sorry, he is busy at the moment
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A: [填空], but is this the way to the library? B: Yes, it is.
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Im sorry
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Pardon
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Excuse me
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You are welcome. Am I the first?
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I hope Im not too late.
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What do you do
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And you
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Do you
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A: Id rather have some tea, if you dont mind. B: [填空].
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Thank you very much
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Yes, I like so
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Of course not, anything you want
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