搜题请搜索小程序“爱下问搜题”
问题
计算题
当x取何值时，代数式x
2
-5x+7取得最大（小）值，这个最大（小）值是多？
答案
解：“略”
问答题
根据所给的图片回答问题。
1.
What is your brother like?
___________________________________________
2.
Does he do his homework?
___________________________________________
3.
What day is it today?
___________________________________________
4.
What would you like for dinner?
___________________________________________
5.
Is your English teacher tall?
___________________________________________
查看答案
单项选择题 A1型题
因房水排泄受阻导致视力减退或丧失的眼病是（）
A.结膜炎
B.角膜炎
C.虹膜炎
D.青光眼
E.白内障
查看答案
