题目内容

创建数据库的命令是()

A. create database
B. alter database
C. drop database
D. create table

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若元素a,b,c,d,e,f依次进栈,允许进栈、出栈操作交替进行,但不允许连续三次进行出栈操作,则不可能得到的出栈序列是()

A. d,c,e,b,f,a
B. c,b,d,a,e,f
C. b,c,a,e,f,d
D. a,f,e,d,c,b

当前主流的数据库管理系统有哪些()

A. Oracle
B. MySQL
C. Sql Server
D. Elyse

当服务员问是否需要点菜时,你还没想好点什么,该怎么说呢()

A. Wait for a moment
B. No
C. Not yet. We need another minute
D. empty

Which is the correct serving orders for a typical western dinner()

A. appetizersoupmain coursesalad dessertcoffee or tea
B. soupappetizermain coursedessertsalad coffee or tea
C. appetizersoupmain coursesalad coffee or teadessert
D. appetizermain coursesoupsalad dessertcoffee or tea

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