A.應(yīng) B.應(yīng)立即 C.不應(yīng) D.不可
A.5,10 B.10,5 C.10,10 D.5,5
A.36850N B.38938N C.41250N D.40385N
A.9.09kA B.10.91kA C.16.67kA D.17.27kA
A.10 B.12 C.14 D.16