A. The ball is above the box.
B. The ball is on the box.
C. The ball is beside the box.
D. The ball is in the box.
1.
![](http://static.xuejinqu.com/qimg/70b/70b8efb8db0a67c78211629fcb2c6a57.png)
2.
![](http://static.xuejinqu.com/qimg/93d/93d3d61c54d48fe55bde602466fcb210.png)
3.
![](http://static.xuejinqu.com/qimg/78a/78a402ed8d9701e575156b5bdc127633.png)
4.
![](http://static.xuejinqu.com/qimg/090/0904f263756330d2ef16189523cb2e98.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)