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【单选题】
B1U3Conversation 4
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B.
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D
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【简答题】与同容量的变压器相比较,感应电动机的空载电流大还是变压器的空载电流大,为什么?
【单选题】冲泡绿茶最好选用( )进行冲泡
A.
紫砂壶
B.
盖碗
C.
玻璃杯
D.
瓷杯
【判断题】与同容量的变压器比较,感应电机的空载电流较大。
A.
正确
B.
错误
【单选题】---This is the first time I _____ my first picture with my own hands. --- It’s time that you ____ a photo of me.
A.
took; took
B.
have taken; took
C.
took; will take
D.
will take; have taken
【单选题】If I were in movie, then it would be about time that I ______ my bead in my hands for a cry.
A.
bury
B.
am burying
C.
buried
D.
would bury
【单选题】-What did you think of the place? --I didn’t care for it at first, but after _____ time I got to like it.
A.
the;a
B.
/;a
C.
a;the
D.
/;the
【单选题】—This is the first time I __________ my first picture with my own hands. —It's time that you __________ a picture for me.
A.
took; will take
B.
have taken; took
C.
took; took
D.
will take; have taken
【判断题】多级错流萃取中,当各级溶剂用量相等时,达到一定的分离程度所需的总溶剂用量最少。 ( )
A.
正确
B.
错误
【单选题】与同容量的变压器相比,感应电动机的空载电流( )。
A.
较大
B.
较小
C.
无法判断
【简答题】与同容量的变压器比较,感应电机的空载电流较大,为什么?
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