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【多选题】
产生最严重三相短路电流的条件是A.
短路前电路空载
B.
短路瞬间电压过零
C.
短路回路纯电阻
D.
短路回路纯电感
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【简答题】Complete the sentences below with the following words or expressions, each one of which can be chosen more than once. underhand fraudulent accountability incorruptible integrity law-abiding mission st...
【简答题】The obligation to prove that one’s actions are legitimate is often called ( ) of proof.
【简答题】Apparently, we are safe neither at home nor in the business office. We use water in both places, but the above-mentioned research shows that chemicals added to our local water supply to kill harmfu...
【单选题】In the last paragraph the author mainly wants to express .
A.
one must be brave to be honest
B.
it’s difficult to be honest when others are not
C.
one should be honest when making a deposit
D.
honesty in one’s actions can help him in the future
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