题目内容

What are they going to do?

A. Going camping
B. swimming and fishing
C. climbing the mountain

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Does student B like fishing?

A. Yes, he does
B. No, he doesn’t

which club will John join ?

A. singing club
B. football club
C. science club
D. swim club

the woman will pay with a credit card.

A. 对
B. 错

假定计算机MI和M2具有相同的指令集体系结构(ISA),主频分别为1.5GHz和1.2GHz。在MI和M2上运行某基准程序P，平均CPI分别为2和1,则程序P在MI和M2上运行时间的比值是（）。

A. 0.4
B. 0.625
C. 1.6
D. 2.5