7. 已知sin 2α =
,则 sinα + cosα的值为(
)
A. -
B.
C .-
D .![]()
6.函数
的单调递增区间是 ( )
A.
B.(0,3) C.(1,4) D.
5. 已知函数y=sin(
x+
)(
>0, -![]()
![]()
<
)的图像如图所示,则
=( )
A.
B.
C.
D.![]()
4. 已知等差数列
的值为 ( )
A.30 B.12 C.36 D.64
3.下列四组函数中,表示同一函数的是( )
A
B.![]()
C.
D.![]()
2.
等于
A.i B.-i C.-1 D.1
1. 满足
,且
的集合
的个数( )
A.1 B.2 C.3 D.4
15. He kept sending her presents in an attempt to win her _______.
A. respect B. favor C. admiration D. pleasure
14. I shouldn’t have accepted the man’s present, but I found it difficult to turn down his ______.
A. offer B. request C. suggestion D. plan
13. -Who did you stay with yesterday? I couldn’t find you anywhere.
- ___________.
A. Mr. Green’s B.The Greens C. Greens D. The Mr. Green’s
湖北省互联网违法和不良信息举报平台 | 网上有害信息举报专区 | 电信诈骗举报专区 | 涉历史虚无主义有害信息举报专区 | 涉企侵权举报专区
违法和不良信息举报电话:027-86699610 举报邮箱:58377363@163.com