皮皮学，免费搜题
登录
搜题
【单选题】
当 时, ;当 时, ,则下列结论正确的是A.
点 是函数 的极小值点
B.
点 是函数 的极大值点
C.
点 必是曲线 的拐点
D.
点 不一定是曲线 的拐点
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
反馈参考答案：
举一反三
【单选题】. Only _____ in a foreign-funded enterprise ______ the importance of learning English well.
A.
when I worked, I realized
B.
when I worked, did I realize
C.
when did I work, did I realize
D.
when did I work, I realized
【单选题】'Can I go and see the dentist when I want?' 'Well, usually you have to make an appointment, unless it's ______ .'
A.
hurry
B.
in a hurry
C.
an emergency
D.
haste
【单选题】_______ it with me. I bet, I will do it well.
A.
Leave
B.
Leaving
C.
If you leave
D.
When left
【单选题】I practiced the speech well， so I didn‘t feel ，when I was speaking.
A.
relaxed
B.
disappointed
C.
nervous
D.
tired
【简答题】I began to like going on line when I got to know it (well)______.
【单选题】The shirt looks fashionable and well designed, but I'm afraid the color will ____ when I wash it. [ ]
A.
go
B.
slip
C.
leave
D.
run
相关题目：
参考解析：
知识点：
题目纠错 0
发布
