單項選擇題某供電營業(yè)所當(dāng)月總抄表戶數(shù)為1000戶,電費總額為400000元,經(jīng)上級檢查發(fā)現(xiàn)一戶少抄電量5000kW/h,一戶多抄電量3000kW/h,假設(shè)電價為0.4元/(kW/h),試求該供電營業(yè)所當(dāng)月的抄表差錯率為()?

A.0.20%
B.1.25%
C.3%
D.5%


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