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【判断题】
Hofmann 重排、 Curtius 重排及 Schmidt 重排都可以重排成异氰酸酯中间体然后进一步反应得到最终产物。A.
正确
B.
错误
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反馈参考答案：
举一反三
【简答题】并联负反馈电路使输入电阻 。
【单选题】Speaker A: Kate, I hate to say goodbye, but I have to. Speaker B: _______.
A.
I hate, too.
B.
Nice meeting you, Kevin. I hope to see you again.
C.
Never mind, you don’t have to say.
【单选题】Why is the word "liveliest" in the title put in quotation marks?
A.
Because it must be emphasized.
B.
Because it stands for Hiroshima.
C.
Because it was what the city was said to be.
D.
Because it was quoted from another article.
【简答题】全波整流输出的直流电压为半波整流的 倍。
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