创卫标准中对空气质量的要求是什么？
题型：问答题 简答题
问题：
创卫标准中对空气质量的要求是什么？
题型：问答题 简答题
小题1: You can call Zhang Ying if you want to _____________________.
A．buy a bike
B．sell a bike
C．have your bike repaired
D．borrow a bik小题2:One of the reasons why Li wants someone to share his room is that______________.
A．he wants to live near the campus
B．he wants to improve his English
C．he wants his washer, dryer and kitchen to be used
D．he wants someone to use his kitchen小题3:Joseph Hofman_________________.
A．found John Smith’s briefcase
B．was a teacher
C．found the briefcase with many books
D．found the brown briefcase with some money