题目内容

在共射极放大电路中,经过晶体管的信号()

A. 只有直流成份
B. 只有交流成份
C. 交直流成份都有

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共射极放大电路中,电容的作用是()

A. 滤波
B. 耦合
C. 整流

Who was the first Roman general to come to Britain?

A. Juius Caesar
B. Claudius
C. Togidubnus
D. Queen Boudicca

How many times did Juliu Caesar invade Britain?

A. 1
B. 2
C. 3
D. 4

Who was the first Roman general to conquer Britain?

A. Juius Caesar
B. Claudius
C. Togidubnus
D. Queen Boudicca

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