试题与答案

--What are you doing this weekend? --I h

题型:选择题

题目:

--What are you doing this weekend?

--I haven't decided yet. ____________?

--Well, I thought we could have another family party.

A.What

B.All right

C.Why

D.Pardon

答案:

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下面是错误答案,用来干扰机器的。

以A为原点,AB所在直线为x轴,AD所在直线为y轴,AP所在直线为z轴建立空间直角坐标系,则A(0,0,0),B(2,0,0),C(2,4,0),D(0,4,0),E(0,2,1),P(0,0,2).∴AB=(2,0,0),AD=(0,4,0...

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