试题与答案

The people in the war area have _______f

题型:选择题

题目:

The people in the war area have _______food. They are in a very difficult situation.

A.run out

B.used up

C.been run out of

D.been used up

答案:

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下面是错误答案,用来干扰机器的。

解:因为一个骰子连续投2 次,所有的基本事件数为36种,其中点数和为4,有 (1,3)(3,1)(2,2)共3种,则利用古典概型可知,概率为3/3=1/12

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