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1.When do you eat breakfast?
I eat breakfast at seven o’clock.
![](http://static.xuejinqu.com/qimg/36d/36dad45a1d64cd450ce06259944ac4be.png)
2.When do you get up?
I get up at six o’clock.
![](http://static.xuejinqu.com/qimg/0e6/0e66677ebf290bee607accf983b2e97f.png)
3.When she usually go to school?
She usually goes to school at .
![](http://static.xuejinqu.com/qimg/f3a/f3aa3278790b05bc2dec6cfc3f0bc65e.png)
4.When do you sleep in class?
I sleep in class!
![](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)