A . 100~1000Hz
B . 1000~2000Hz
C . 1000~100000Hz
D . 2000~100000Hz
E . 2000~1000000Hz
[单选题]医用中频电流的频率范围是A.100~1000HzB.1000~2000HzC.1000~100000HzD.2000~100000HzE.2000~1
[单选题]医用中电频电流的频率范围是A.1~10HzB.10~20kHzC.1~100kHzD.10~100kHzE.20~100kHz
[单选题]医用低频电流的频率范围是多少HzA.0~100HzB.0~1000HzC.0~10000HzD.0~100000HzE.0~1000000Hz
[单选题]目前医疗常用的中频电流频率范围是A.1000~2000HzB.1000~4000HzC.2000~5000HzD.2000~8000HzE.5000~10000Hz
[单选题,A2型题,A1/A2型题] 医用超短波电流的频率为()A . 13.56MHzB . 24.50MHzC . 27.12MHzD . 40.68MHzE . 433.92MHz
[单选题]中频设备的频率范围为()RHzA . 50-100B . 30-80C . 0.18-8D . 0.05
[单选题]中频增益曲线的频率范围在()。A.250~1000hzB.2500~6000hzC.250~6000hzD.1000~2500hzE.250~9000
[单选题]中频增益曲线的频率范围在()。A.250~1000hzB.2500~6000hzC.250~6000hzD.1000~2500hzE.250~9000
[单选题]医用高频电流的频率范围是A.1000Hz以上B.10000Hz以上C.100000Hz以上D.1000000Hz以上E.10000000Hz以上
[单选题]中频电疗法采用的电流频率为()A . 100Hz~10kHzB . 100Hz~100kHzC . 1kHz~10kHzD . 1kHz~100kHzE . 1kHz~1000kHz