A.
![](http://static.xuejinqu.com/qimg/1e0/1e003111f77ef434493c4a28eb24cdaf.png)
![](http://static.xuejinqu.com/qimg/969/96971ddd4f9a8f2ddf62ee7de9635255.png)
![](http://static.xuejinqu.com/qimg/52b/52b9e08c58b2d933892230979fcc73cb.png)
![](http://static.xuejinqu.com/qimg/c1d/c1db95b7d6a0373f5861c5619e10b2b1.png)
![](http://static.xuejinqu.com/qimg/de7/de722da6f27e6cce0b5f58fd50283207.png)
1.visit one's grandparents (
2.play computer games (
3.go to the cinema (
4.climb a hill (
5.pick fruit (
![](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)