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【单选题】
由理想二极管组成的电路如图所示,其AB两端的电压为 ( )。A.
-6V
B.
-12V
C.
+6V
D.
+12V
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【简答题】Translate the following Chinese sentences into English with the help of the words or phrases given in brackets. 1. 她因为没有立刻回答而向我表示歉意。(apologize) _________________________ for not answering immediately...
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