函数y=x2+cosx是

题干

函数y=x²+cosx是（）

A：奇函数

B：是偶函数

C：既奇又偶函数

D：非奇非偶函数

上一题下一题 0.0难度选择题更新时间:2016-09-01 06:10:46

答案(点此获取答案解析）

B

同类题4

人们常常喜欢用一些英语名言来作为自己的座右铭，请根据以下信息，给下面5个人选择合适的座右铭来配对。

____ Ann works hard at English. She never wastes time.

____ Bill is always afraid of failing exam . He needs more confidence.

____ David has good study habits. He thinks the beginning is very important.

____ Linda is 70 years old, but she still likes learning something.

____ Tom wants to be a professional basketball player, but he can’t play it very well.

A. Practice makes perfect.
B. Every minute counts.
C. Failure is the mother of success.
D. A good beginning is half done.
E. It is never too old to learn.

题干

答案(点此获取答案解析）

同类题1

同类题2

同类题3

同类题4

同类题5