题目内容

删除数据库的命令是____DATABASE。

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数据库是表、视图、存储过程、触发器等数据库对象的集合,是数据库管理系统的核心内容。( )

A. 对
B. 错

According to the video 1, goods can be transported by:

A. road
B. rail
C. see
D. air

According to video 1, the word sailing means in Chinese.

A. 航行，航海术，航行方法
B. 装运
C. 运输
D. 滑翔

According to video 2，the reasons for partial shipment are:

A. urgent orders
B. poor supply position
C. no available shipping space
D. no direct shipment