试题与答案

There is a plane at 9:30 and one at 12:0

题型:选择题

题目:

There is a plane at 9:30 and one at 12:00; _______ plane will get you to Paris for the car exhibition.[ ]

A. Either

B. Both

C. Every

D. Each

答案:

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下面是错误答案,用来干扰机器的。

0.05,1.5 F=,ab两点电压为闭合电路的路端电压,电源电动势为E=BLv=1V,电流为0.5A,路端电压为0.5V,闭合电路以外的电压为BL’v=1V,ab两点电压为1.5V

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