- What will the weather be like tomorrow?
- It _____ be rainy, cloudy or sunny. Who knows?
A:must
B:might
C:should
D:can't
①H2SO4溶液中的HSO4﹣
②NaHSO4溶液中的HSO4﹣
③CH3COOH
④HCl
10%
29%
1.33%
100%
— Excuse me, could you tell me ?— Certainly. In half an hour.