A.斷路器數(shù)少于進(jìn)出線回路數(shù); B.斷路器數(shù)等于進(jìn)出線回路數(shù); C.斷路器數(shù)多于進(jìn)出線回路數(shù); D.斷路器數(shù)比進(jìn)出線回路數(shù)少一臺。
A.斷路器數(shù)大于回路數(shù); B.斷路器數(shù)等于回路數(shù); C.斷路器數(shù)小于回路數(shù); D.斷路器數(shù)小于等于回路數(shù); E.斷路器數(shù)大于等于回路數(shù)。