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[音频]W=WaiterG =GuestG: Waiter! This meat is (1)! It's enough to (2)in your head.W: Perhaps you'd like to (3), sir. The steak is (4).G: Ok, man. I think I'll have the steak.W: How (5)your steak cooked?G: (6)for me, please.

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cosx是__________的原函数

是cosx的原函数.

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是cosx+1的原函数.

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