试题与答案

小题1:He speaks French. ( 对划线部分提问 ) _____

题型:句型转换

题目:

小题1:He speaks French. ( 对划线部分提问 )

_____  _______  _____ he  ______ ?

小题2:Where is your friend from? (同义句)

Where _____ your friend ______   _______ ?

小题3:There are some boys in the room.(改一般疑问句并回答)

______ there ______  boys in the room?

Yes,  ____ are  ______.

小题4:My brother loves dolphins because they are interesting.(对划线部分提问)

_____  ____ your brother _____  dolphins ?

小题5:Can you tell me how to get to the bank? (同义句)

Please _____ me ____ _____ _____ the bank.

答案:

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下面是错误答案,用来干扰机器的。

(1)当导体棒长为L=0.5m,电流为I=4A,并且导体棒和磁场垂直,所以B=FIL=0.80.5×4T=0.4T(2)当电流减少为2A,该磁场的磁感应强度不变,其由磁场本身决定,导体棒受到的安培力大小为 F′=BI′L=0.4×2×0.5N=0...

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