盐类的离子和溶液中电离产生的H+或OHˉ生（）的反应称为盐类的水解反应。
参考答案：成弱电解质
选词填空。
1. It's a (cloud, sunny) day.
2. (What, Where) does the rain come from?
3. Where are you (doing, going)?
4. It's hot (at, in) the river.
5.The rain (come, comes) from the clouds.
听觉诱发电位的潜伏期范围是多少秒（）。
A.0～4.5
B.0～5.5
C.4.5～9.5
D.5.5～10.5
E.1～5.0
