1.What'syourhobby?
![](http://static.xuejinqu.com/qimg/80b/80b717e94b855d6537368aa576ce8944.png)
2.How does the boy go to school?
![](http://static.xuejinqu.com/qimg/fe5/fe58c6a4f12b651c967bb699b2624ad8.png)
3.Can the woman dance?
![](http://static.xuejinqu.com/qimg/d98/d9863f599f0ad7e10a6a4a5432b820aa.png)
4.What is the grandmother doing?
![](http://static.xuejinqu.com/qimg/664/6647b0aea43c9aadaf117f11ebe580c9.png)
5.What are they?
![](http://static.xuejinqu.com/qimg/85d/85dc79e3651804816bd0d3d776186114.png)
![](http://static.xuejinqu.com/qimg/85d/85dc79e3651804816bd0d3d776186114.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)