1. Daming’s mother is a t
![](http://static.xuejinqu.com/qimg/4b4/4b420b287200ea2e32fb66be5fec6542.png)
2. Look! He’s d
![](http://static.xuejinqu.com/qimg/021/0214171d72f33367aff7e649791bd9fc.png)
3. Hurry. It’s a quarter to e
![](http://static.xuejinqu.com/qimg/64f/64f6d571e0715da5155ecfc9a205090f.png)
4. What time do your family have d
![](http://static.xuejinqu.com/qimg/1d3/1d3bc7b623083b6d6873df08cba48ac8.png)
5. She had a c
![](http://static.xuejinqu.com/qimg/85c/85c1bbdd19cdd0f9dc3979ca342b4856.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)