All flights because of the snowstorm ,many passengers could do nothing but wait.
A.
had been cancelled
B.
were cancelled
C.
have been cancelled
D.
having been cancelled
拍照语音搜题,微信中搜索"皮皮学"使用
参考答案:
参考解析:
知识点:
皮皮学刷刷变学霸
举一反三
【简答题】在 Visual FoxPro 中 , 如果要将学生表 S( 学号 , 姓名 , 性别 , 年龄 ) 中 “ 年龄 ” 属性删除 ,正确的 SQL 命令是 A) ALTER TABLE S DROP COLUMN 年龄 B) DELETE 年龄 FROM S C) ALTER TABLE S DELETE COLUMN 年龄 D) ALTEER TABLE S DELETE 年龄
【简答题】A.To show people how to get their lives back to normal. B.To show how difficult it is for people to lose weight. C.To remind people to check the calories on food bags. D.To illustrate how easily peopl...