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【单选题】
直流电动机铭牌上的额度电流是（ ).A.
额度电枢电流
B.
额度励磁电流
C.
电源输入电动机的电流
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反馈参考答案：
举一反三
【单选题】Can you tell me _____________________?
A.
when you did it so well
B.
when did you do it so well
C.
how you did it so well
D.
how did you do it so well
【单选题】—_________ work in Microsoft? —Yes, I did.
A.
Did you used to
B.
Did you use to
C.
Do you used to
D.
Was you use to
【单选题】Hi, Jean! You look unhappy. _________?
A.
What did you happen
B.
What you happened
C.
Did you happen
D.
What happened to you
【简答题】—Did you go to Central Park? —_______. [ ] A Yes , you did B. Yes, I did C. No, you didn't D. No, I did
【单选题】______ work in Microsoft ? [ ]
A.
Did you use to
B.
Did you used to
C.
Do you used to
D.
Do you use to
【单选题】—_______ John this week? —Yes. —Where _______ him? —In the library.
A.
Did you see; did you see
B.
Have you seen; did you see
C.
Do you see; have you seen
D.
Have you seen; have you seen
【单选题】_____ work in Microsoft? [ ]
A.
Did you used to
B.
Did you use to
C.
Do you used to
D.
Do you use to
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