A.10% B.15% C.20% D.30%
A.KB B.MB C.GB D.BITS
A.master數(shù)據(jù)庫(kù) B.model數(shù)據(jù)庫(kù) C.tempdb數(shù)據(jù)庫(kù) D.pubs數(shù)據(jù)庫(kù)