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王老师:19139051760(拨打)
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第1题

设随机变量X与Y独立同分布，P﹛X=-1﹜=P﹛Y=-1﹜=1/2,P(X=1)= A、P(X=Y)=1/2 B、P(X=Y)=1 C、P(X+Y=0)=1/4 D、P(XY=1)=1/4
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第2题

For which job do you need to write a letter in order to get an application form? A. E03 B. E08 C. C. E02 D. D. E04
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第3题

Which number would you call if you know several major European languages? A. .267 - 9616 B. 555 - 3453 C. C.609 -2128
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第4题

Even after the railroad had come and the car revolution had taken place , the great distance to be traveled and the time
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