A.127.0.0.5 B.127.0.0.1 C.127.0.0.6 D.127.0.0.7
A.一對(duì)一 B.一對(duì)多 C.平等關(guān)系 D.多對(duì)多
A.添加數(shù)據(jù) B.更改數(shù)據(jù) C.查詢數(shù)據(jù) D.打開(kāi)文本