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【简答题】
如问题8-9图所示，在两磁极之间放置一圆形的线圈，线圈的平面与磁场垂直。问在下述各种情况下，线圈中是否产生感应电流，并指出其方向。(1)把线圈拉扁时；(2)把其中一个磁极很快地移去时；(3)把两个磁极慢慢地同时移去时。
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反馈参考答案：
举一反三
【单选题】The traveler couldn’t make himself _____ in his poor English.
A.
understand
B.
understanding
C.
to understand
D.
understood
【单选题】在正向市场中,多头投机者应();空头投机者应()
A.
卖出近月合约,买入远月合约
B.
卖出近月合约,卖出远月合约
C.
买入近月合约,买入远月合约
D.
买入近月合约,卖出远月合约
【单选题】Debbie couldn't understand why her computer crashed; it_____ for as long as she could remember.
A.
has worked
B.
had worked
C.
has been working
D.
had been working
【简答题】辩论的特点包含哪几个方面?
【单选题】关于裤臀围放松量,下列叙述正确的是( )
A.
紧身型裤臀围放松量7-10cm之间
B.
适身型裤臀围放松量为4~5cm之间
C.
宽松型裤臀围放松量大于适身型裤臀围放松量
D.
宽松型裤臀围放松量在8-11cm之间
【单选题】The child couldn't comprehend the profound textbook.
A.
interprets.
B.
read
C.
understand
D.
translate
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