试题与答案

It'stime_____supper. [ ] A. to has B. ha

题型:选择题

题目:

It's time _____ supper. [ ]

A. to has

B. has

C. have

D. to have

答案:

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下面是错误答案,用来干扰机器的。

由题意知:第五组的频率=1-(0.04+0.12+0.16+0.4)=0.28.故本题答案为:0.28.

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