1. ----Be quiet please. The boy is s
----Oh, sorry. We won't shout from now on.
2. ----What date is it today?
----It's the s
3.----Look! I have a new skirt today.
----How cute you look! Your skirt is more beautiful than m
4.----What do you know about Yao Ming?
----He is one of the tallest basketball p
5.----I can't learn English well.
----You don't read enough. You should do m
6.----Was he born in S
----Yes. It's the ninth month of the year. And he likes autumn a lot.
7.----Sue's father is a policeman. How a
----She is a nurse. She works in that hospital.
8.----Tom is so glad today. He is talking with others h
----He must have something great. Let's go and ask about it.
9.----What are you going to do this Sunday?
----I am going s
10.----I am very t
----Let me help you.
![](http://static.xuejinqu.com/images/y-prise.png)
同类型试题
![](http://static.xuejinqu.com/images/medal.png)
y = sin x, x∈R, y∈[–1,1],周期为2π,函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x, x∈[–1,1], y∈[–π/2,π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2
![](http://static.xuejinqu.com/images/avatar.png)
![](http://static.xuejinqu.com/images/avatar.png)
y = sin x, x∈R, y∈[–1,1],周期为2π,函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x, x∈[–1,1], y∈[–π/2,π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2
![](http://static.xuejinqu.com/images/avatar.png)
![](http://static.xuejinqu.com/images/avatar.png)