A.It's a panda. | B.It's a window. | C.It's a schoolbag. | D.It's a pen. | E.It's a ruler. |
—
![](http://static.xuejinqu.com/qimg/c0e/c0ecebe623a9353fb03b6761f6f08527.png)
2. —What's this?
—
![](http://static.xuejinqu.com/qimg/3eb/3ebf534f657361fd53c664ada53b78f7.png)
3. —What's this?
—
![](http://static.xuejinqu.com/qimg/fb4/fb4b1239fcbda9ceac27fa28fb29dae6.png)
4. —What's this?
—
![](http://static.xuejinqu.com/qimg/63a/63a1d3cb4e76df88e9216d42d3e0423b.png)
5. —What's this?
—
![](http://static.xuejinqu.com/qimg/b58/b5805c68fa0e2960fd2f9bd21d213dd7.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)