你可能感興趣的試題

A.聯(lián)機(jī)數(shù)據(jù)庫檢索系統(tǒng)
B.光盤數(shù)據(jù)庫檢索系統(tǒng)
C.網(wǎng)絡(luò)數(shù)據(jù)庫檢索系統(tǒng)
D.以上全部

A.AD= Peking Univ* and AU=wang xuan
B.AD= Peking Univ* and AU=wang x
C.Peking Univ* and AU=wangxuan
D.Peking Univ and AU=wang xuan