干扰电疗法其差频为 A.0~1000Hz B.0~100Hz C.50~2

Loveyou2020-05-20  15

问题 干扰电疗法其差频为A.0~1000HzB.0~100HzC.50~200HzD.0~50HzE.100~200Hz

选项

答案B

解析
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