1. play football a.
![](http://static.xuejinqu.com/qimg/b6e/b6e3de2186e8314b420953b13251f60b.png)
2. do kung fu b.
![](http://static.xuejinqu.com/qimg/907/9075ff339ed657e1058721d4947f7c11.png)
3. teach English c.
![](http://static.xuejinqu.com/qimg/79c/79cafdac94723d484cfd9ff1fc25ef0e.png)
4. read the newspaper d.
![](http://static.xuejinqu.com/qimg/48f/48f9c221575898de785079e76f7b4113.png)
5. watch TV e.
![](http://static.xuejinqu.com/qimg/e21/e2129219f769ea2fd35a4368506ed38d.png)
![](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)