单项选择题

A.频率0.66~1Hz,波宽0.1~0.5ms
B.频率1~100Hz,波宽0.1~1ms
C.频率0.66~1Hz,波宽0.01~0.2ms
D.频率0.66~1Hz,波宽0.1~1ms
E.频率2~160Hz,波宽0.1~2ms