问题
选择题
— Which is more popular, Yao Ming and Liu Xiang?
— I think them are popular with us. [ ]
A. either of
B. none of
C. both of
D. all of
答案
答案：C
搜题请搜索小程序“爱下问搜题”
— Which is more popular, Yao Ming and Liu Xiang?
— I think them are popular with us. [ ]
A. either of
B. none of
C. both of
D. all of
答案：C
2NO(g)，在密闭容器中，下列条件的改变引起该反应的反应速率的变化是什么（填在横线上）。