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【简答题】
电路如图2所示,图 (b) 是图( a )的等效电路,试用电源等效变换方法求 U OC 及 R 0 。 图2.doc
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反馈参考答案：
举一反三
【简答题】中小型水电站自用变压器一般采用1~3台,3台变压器应分别接接在3个独立引接点。____
【单选题】You'd better sing. It doesn't _____ whether you can sing well or not. [ ]
A.
work
B.
matter
C.
problem
D.
affect
【单选题】----Do you sing or dance? ----I ___________.
A.
sing
B.
singing and dancing
C.
sing but I dance
【简答题】听力原文：Only through what will you English? Only through what will you English? Only through ______ will you English.
【单选题】—Can't you sing this song in French? — ________ ________ Let me sing it for you. [ ]
A.
Yes, I can.
B.
No, I can't.
C.
Yes, I can't.
D.
No, I can.
相关题目：
【单选题】----Do you sing or dance? ----I ___________.
A.
sing
B.
singing and dancing
C.
sing but I dance
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