A class B amplifier（not push-pull）（）.

A.conducts through 360° of the input waveform

B.conducts through 180° of the input waveform

C.conducts between 180° and 360° degrees of the input waveform， depending on the amount of dc bias

D.conducts through less than 180° of the input waveform

正确答案：conducts through 180° of the input waveform