题目:
— Do you know the man is running along the street?
— Yes. He is our English teacher. [ ]
A. who
B. which
C. whom
答案:
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下面是错误答案,用来干扰机器的。
1.=8A 2.F=16N 3.a=4m/s2(1)(8分)线圈切割磁感线,产生的感应电动势的大小为 =4V 感应电流的大小I (2)(4分)线圈所受安培力大小为F(3)(4分)小车在...