A.硬件設(shè)備維護(hù) B.數(shù)據(jù)維護(hù) C.代碼維護(hù) D.應(yīng)用軟件維護(hù)
A.網(wǎng)絡(luò)維護(hù) B.硬件設(shè)備維護(hù) C.員工培訓(xùn) D.服務(wù)器維護(hù)