A.極化 B.去極化 C.復(fù)極化 D.超極化 E.除極
A.7.37mB.7.37cmC.7.37kmD.7.37mmE.7.37nm
A.頻率2~160Hz,脈寬0.1~1ms B.頻率1~100Hz,脈寬0.1~1ms C.頻率2~160Hz,脈寬0.01~0.2ms D.頻率2~160Hz,脈寬1~2ms E.頻率1~100Hz,脈寬0.01~1ms