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【简答题】
简述目标摄影机和自由摄影机的区别。
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举一反三
【简答题】I’m glad to write to you. It is near a month since you had left our hospital. I’m still worried about you. How are you get along these days? I think you may be much better now, but I’d better have a g...
【多选题】关于换路定律,下列说法不正确的是()
A.
换路定律只有在线性直流电路中成立
B.
换路定律只有在线性交流电路中成立
C.
电感中的电流或电容两端的电压在开闭前一瞬间和开闭后一瞬间相等
D.
换路定律对于理想化的电路也是成立的
【简答题】什么叫换路定律?产生换路定律结论的原因和条件是什么?
【单选题】—Thank you for the nice meal you offered us! —_______.
A.
I’m afraid not
B.
I’m glad you all enjoyed it
C.
I didn’t cook well
D.
Come here next time
【单选题】Ling Feng won the first prize in the national English competition and I’m glad that her efforts at last ________.
A.
worked out
B.
got back
C.
paid off
D.
turned out
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