题目内容

In old Chinese marriage arrangements, one didn’t choose his or her spouse, who was instead arranged by the parents with the help of matchmakers. Generally speaking, in modern times, one chooses his or her own marriage partner without the approval of others.

A. 对
B. 错

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MySQL采用结构化查询语言来操作数据库。

A. 对
B. 错

SQL语句必须以 ; 结束

A. 对
B. 错

SQL语句分类有以下哪些?

A. DDL
B. DQL
C. DML
DCL

SQL中常用的运算符有以下哪些?

A. 算术运算符
B. 赋值运算符
C. 比较运算符
D. 逻辑运算符

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