A.
![](http://static.xuejinqu.com/qimg/589/5896a98e6f38ea36f22cc818294b451f.png)
B.
![](http://static.xuejinqu.com/qimg/c91/c91e19eb71bc0fa188aecdc1eb33b373.png)
C.
![](http://static.xuejinqu.com/qimg/7d8/7d8a796360d72687e219cca61b93df3f.png)
D.
![](http://static.xuejinqu.com/qimg/f22/f22da5392182c9f016aaec019ede488c.png)
1.Let’s go home. (
2.Let’s have dancing lessons. (
3.Let’s go to school. (
4.I go to bed at nine thirty. (
![](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)