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【单选题】
图示电路中，由叠加定理可知，当ab两点之间的电压Uab=0V时，电压源电压Us应为 V。【图片】A.
4
B.
-4
C.
8
D.
-8
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举一反三
【单选题】We are very pleased to make a partnership with your company and look forward to a_____beneficial relationship.
A.
mutually
B.
punctually
C.
respectively
D.
precisely
【简答题】We accept your terms and conditions set out in the draft agency agreement and look forward to a happy and successful working relationship with you.
【简答题】一、给下列带点字选择正确的读音。 颗数( A 、 shǔ B 、 shù )
【简答题】SH型锅炉表示()。
【简答题】一、给下列带点字选择正确的读音。 数不清( A 、 shǔ B 、 shù )
【简答题】完型填空(10分) A student and his teacher are walking past a field. They 1 an old pair of shoes. The shoes are the old man’s. He’s 2 on the other side of the field. The student says, “Let’s 3 the shoes away...
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