A.100Hz~10kHz B.100Hz~100kHz C.1kHz~10kHz D.1kHz~100kHz E.1kHz~1000kHz
A.0~10Hz B.0~100Hz C.0~1000Hz D.0~10000Hz E.0~100000Hz
A.電解質(zhì) B.絕緣體 C.電容體 D.能電離的物質(zhì) E.能導電的物質(zhì)