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【单选题】
当温度升高时，放大电路中下列哪个参数或电量会下降？（ ）（8.0分）A.
集电结反向电流ICBO。
B.
共射极电流放大系数β。
C.
发射结静态电压UCEQ。
D.
集电极静态电流ICQ。
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【单选题】What is Mary's problem of living in a family house?
A.
She dislikes the food she eats.
B.
She is unable to sleep well.
C.
She finds the rent high.
D.
She has no chance to make friends.
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