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【单选题】
线圈自身电流变化在线圈中产生的感应电动势称为( )。A.
自感电动势
B.
互感电动势
C.
交变电动势
D.
电源电动势
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反馈参考答案：
举一反三
【简答题】a×6+6×15=______×（______+______）．
【单选题】某企业购买材料设备后交付承运人运输,未按约定给付承运费用时,承运人有权扣留 足以清偿其所欠运费的货物,承运人行使的是( )。
A.
抵押权
B.
质权
C.
留置权
D.
所有权
【单选题】We had only been driving for an hour when the car ______ petrol. [ ]
A.
was run out of
B.
was run out
C.
ran out of
D.
ran out
【单选题】We had been driving for hours ___________I realized that something was wrong with one of the tyres.
A.
as
B.
when
C.
while
D.
until
【简答题】Poor old Ed. I t made me all _____1____ when I heard the news about his death. He meant an ____2___ lot to me. we had know each other ____3___ all our lives, ever since we group up in the same ____4__...
【简答题】______÷5=6：______=0.6= 15 () =______：15．
【简答题】15 ( ) =6：______=3÷5= ( ) 15 =______%=______（小数）
【单选题】As we were driving along we saw a good restaurant, so we stopped（）dinner.
A.
having
B.
to have
C.
having been
D.
to be had
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