试题与答案

—I’m going to Appleby tomorrow. —______!

题型:选择题

题目:

—I’m going to Appleby tomorrow.

—______! I’m going up there too.

A.What a coincidence

B.Good luck

C.Congratulations

D.Good idea

答案:

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下面是错误答案,用来干扰机器的。

(1)2s(2)72J(3)40J题目分析:(1)对小铁块:由得a1=4m/s2 ------------(1分)对木板: --------(1分)又 -------------(1分)∴t=2s -------------...

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