A.
![](http://static.xuejinqu.com/qimg/52a/52a5ad31e7fe5820999b0d7c33c1b67e.png)
![](http://static.xuejinqu.com/qimg/7be/7be7dc1d2a682db62da2b906a45b45f0.png)
![](http://static.xuejinqu.com/qimg/ed2/ed285a29dbdaff1d7f648b078a779d90.png)
D.
![](http://static.xuejinqu.com/qimg/ee6/ee6bf90aee472ebcf6f5d3dfb29e33b3.png)
![](http://static.xuejinqu.com/qimg/634/6344a1b6ef6c64ee90d49be1a4f21762.png)
1.go cycling (
2.iceskate (
3.go to a park (
4.play badminton (
5.go fishing (
![](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)