【判断题】在SQL Server中可以设置用户只有查询权限
【单选题】John caught every opportunity ________ he wanted to be successful.
【判断题】啤酒按有无杀菌(酵母菌),可分为生啤酒和熟啤酒两种。
【单选题】Millions of pounds’ ____ of fish is caught every year around the coasts of Britain.
【单选题】空调器不出风的原因是( )。
A.
空气过滤器脏堵( B ) ( C )( D )