A.受托性B.服務(wù)性C.經(jīng)營性D.規(guī)范性
A.基本業(yè)務(wù)B.專項(xiàng)業(yè)務(wù)C.特色業(yè)務(wù)D.多種經(jīng)營業(yè)務(wù)