( )1.
![](http://static.xuejinqu.com/qimg/981/9819caff62c818b60ff8afd12fa0779d.png)
A. 0K. Let's play. B. It's windy. C. Here you are.
( )2.
![](http://static.xuejinqu.com/qimg/b09/b09ed7869830b729213d7aa3c7d8b48c.png)
A. Guess. B. Good idea. C. Thank you.
( )3.
![](http://static.xuejinqu.com/qimg/242/242dab1674e5b900722b7bbb0c597e1b.png)
A. All right. B. It's eight. C. It's cool
( )4.
![](http://static.xuejinqu.com/qimg/64b/64b9fccfcb4f87ab035ab05b87ae72a2.png)
A. It's eleven o'clock. B. OK, Here you are. C. Great !
![](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)