分解因式：x3-25x=______．
x3-25x，
=x（x2-25），
=x（x+5）（x-5）．
根据句意及首字母提示补全单词。
1. Miss Wang t_____ English in No.2 Middle School.
2. A _____ of boys are playing basketball happily.
3. — What's the w_____ like?
— It's cloudy.
4. I don't like the lion,because it is d_____.
5. His father is a doctor, he works in a h_____.
为促进安眠药毒物快速排出，应选用
A．2%～4%碳酸氢钠溶液B．温水或生理盐水C．3%过氧化氢溶液D．硫酸钠溶液E．硫酸铜溶液
