A.磁感應(yīng)對(duì)地電壓 B.磁感應(yīng)縱電動(dòng)勢(shì) C.磁感應(yīng)橫電動(dòng)勢(shì) D.等效干擾電壓
A.5% B.8% C.10% D.12%
A.10 B.20 C.30 D.40