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【单选题】
在如图所示的电路中,已知二极管的反向击穿电压为 100V ,当 V =-10V 、温度为 20 °C时, I = 1 μ A 。 1 .当 V 增大到- 20V 时,则 I 约为 ____ 。 ( a . 10 μ A , b . 2 μ A , c . 1 μ A , d . 0.5 μ A ) 2 . 在实际使用中,该二极管的反向工作电压通常不应该超过 ____ 。 ( a . 100V , b . 50V , c . 10V )A.
b, a
B.
b, b
C.
c, a
D.
c, b
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【单选题】Reid vapor pressure is ______．
A.
exerted by liquid cargo on the sides of a tank
B.
exerted by liquid cargo on a cargo hose body
C.
the lowest temperature and pressure that will cause a flammable liquid to give off vapors
D.
a measurement of the amount of flammable vapors given off by a liquid at a certain temperature
【简答题】____ exerted strong influence upon many french writers through presenting his dark and grotesque fictional world such as the one in the raven.
【简答题】Can you make any sense _______ what this writer is saying? A．to B．with C．of D．on
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