题目内容

On his return from work, he found his money ______ .

A. steal
B. stolen
C. stealing
D. steel

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He shut himself in and ________ his mistakes at home.

A. pondered over
B. discussed over
C. talked over
D. thought

There _______ nothing else to do, we left.

A. having been
B. is
C. being
D. is to be

设某小组有5个同学,分别为S1,S2,S3,S4,S5。若对每个同学的“学习好”程度打分:S1:95 S2:85 S3:80 S4:70 S5:90这样就确定了一个模糊集F,它表示该小组同学对“学习好”这一模糊概念的隶属程度,请写出该模糊集

设有论域U={u1, u2, u3, u4, u5}并设F、G是U上的两个模糊集,且有F=0.9/u1+0.7/u2+0.5/u3+0.3/u4G=0.6/u3+0.8/u4+1/u5请分别计算 F∩G,F∪G,﹁F。

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