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【单选题】
正弦交流电的有效值为其最大值为( )A.
倍
B.
倍
C.
倍
D.
倍
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反馈参考答案：
举一反三
【简答题】What can I do for you．sir? A) That blue shirt, please. B) No, you can't do anything for me. C) Yes, you can. D) I can do it by myself.
【简答题】相信,信任 v. be______
【单选题】---Can you hear me? ---No, I can’t. Would you please speak _________?
A.
clearly enough
B.
quick enough
C.
enough clear
D.
enough clearly
【单选题】— Can you repeat the address, please? — Broad Street, No. 12. — _____. [ ]
A.
Heard it
B.
Made it
C.
Got it
D.
Went it
【单选题】— Hello, may I speak to Miss Green, please? — ______. [ ]
A.
Speaking, please
B.
You can
C.
You can't
D.
Sorry, he isn't here
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