题目内容

创建mydb数据库

查看答案

搜索结果不匹配？点我反馈

更多问题

查询userinfo表中的所有数据

查询usrinfo表中id为1的记录

Which transportation form can be more suitable for the firefighters or emergency team?

A. Hyperloop
B. Marin Jetpack
C. Self-driving cars
D. Urban transport pods

When will the self-driving cars be available commercially by prediction?

A. 2021
B. 2018
C. 2019
D. 2020