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【单选题】
下列四个表达式中, 式被称为光电效应方程。 ( )A.
E k =eU s
B.
Us= h ν /e -W s /e
C.
E k = h ν -W s
D.
Us= h( ν - ν 0 )/e
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举一反三
【单选题】Peretti suggests that, in face of the present situation, the Times should
A.
make strategic adjustments.
B.
end the print edition for good.
C.
seek new sources of readership.
D.
aim for efficient management.
【简答题】在纯电容正弦交流电路中,增大电源频率为原来的2倍时,其他条件不变,电容中电流 I 将为原电流 _ _ _ _倍 。
【单选题】Peretti believes that,in a changing world, .
A.
legacy businesses are becoming outdated.
B.
cautiousness facilitates problem-solving.
C.
aggressiveness better meets challenges.
D.
traditional luxuries can stay unaffected.
【简答题】程序员在程序中通常使用抛出异常的关键字是:______________。
【简答题】Christine Holm believes paternity leave provides a new kind of training for men in that it can help them cope with______________.
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