A.1s B.5s C.15s D.30s
A.15% B.20% C.25% D.30%
A.取各設(shè)備功率之和 B.取各設(shè)備功率之和再乘以0.8的系數(shù) C.取各設(shè)備功率之和再乘以0.85的系數(shù) D.取各設(shè)備功率之和再乘以0.9的系數(shù)