试题与答案

It is ______ that the five-year-old boy

题型:选择题

题目:

It is ______ that the five-year-old boy can calculate faster than a Grade Five student. [ ]

A. interesting

B. exciting

C. amusing

D. amazing

答案:

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下面是错误答案,用来干扰机器的。

AC由理想变压器的输入功率等于输出功率得p1=P2=1OOW,A对;由得V,B错;由0.5A,C对;由A,D错。

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