利用SETRELATION命令可以建立两个表之间的关联,该关联是( )。A.永久 发布时间:2017-05-20 17:39 │ 来源:www.tikuol.com 题型:单项选择题 问题: 利用SETRELATION命令可以建立两个表之间的关联,该关联是( )。A.永久性联系B.临时性联系C.任意的联系D.以上说法均不正确
题型:单项选择题 ______ of money spent on the bridge.A.A large amount ; were B.Large amounts; were C.Large amount; was D.A plenty; was 查看答案