A.轉(zhuǎn)數(shù) B.轉(zhuǎn)數(shù)的平方 C.轉(zhuǎn)數(shù)的立方 D.轉(zhuǎn)數(shù)的四次方
A.80 B.65 C.160 D.650
A.伏特 B.安培 C.庫侖 D.歐姆