A.1~10Hz
B.10~20kHz
C.1~100kHz
D.10~100kHz
E.20~100kHz
[单选题]低频电疗法采用电流的频率为A.0~1000HzB.1~100kHzC.100kHz以上D.0~1000MHzE.1~100MHz
[单选题]引起肌肉单收缩较适宜的电流频率是A.1~10HzB.10~20HzC.20~30HzD.50HzE.100Hz
[单选题]引起肌肉单收缩的较适宜电流频率是A.1~10HzB.10~20HzC.20~30HzD.50HzE.100Hz
[单选题]能促进血液循环的较适宜的低频电流频率是A.1~10HzB.10~20HzC.20~30HzD.50HzE.100Hz
[单选题]适于引起肌肉单收缩的电流频率是A.1~10HzB.11~20HzC.21~30HzD.31~40HzE.41~50Hz
[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]兴奋迷走神经应选择静态干扰电的差频为A.1~10HzB.20~40HzC.25~50HzD.50~100HzE.90~100Hz
[单选题]调制中频电流的调制波的频率通常是A.l~10HzB.l~50HzC.1~100HzD.1~150HzE.10~200Hz
[单选题]干扰电中能兴奋交感神经的差频为 ( )A.1~10 HzB.100 HzC.25~50 HzD.90~100 HzE.50~100 Hz
[单选题]1GHz等于A.1000HzB.1000kHzC.10MHzD.100MHzE.1000MHz