【判断题】【消耗次数：1】
当调节电位器RP至最大时，灯泡突然熄灭，则应适当减小电阻R4的阻值。
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错误
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【单选题】
电路由两级放大器组成。V1管是第一级放大器的放大管，电位器RP1、电阻器R1和R2是基极偏置电阻，电阻器R3是集电极电阻，R4、R5是发射极偏置电阻，C2是旁路电容。
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正确
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错误
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