The pencil is red.
The ruler is yellow.
The chair is white.
The cat is brown.
1. 黄色 a.
![](http://static.xuejinqu.com/qimg/112/112ab93256d2909382ecbbe366c86814.png)
2. 白色 b.
![](http://static.xuejinqu.com/qimg/fcf/fcf026fd610b504066a0cd9afeeb1446.png)
3. 红色 c.
![](http://static.xuejinqu.com/qimg/beb/bebe5df0847422490346d1c4822e52a3.png)
4. 棕色 d.
![](http://static.xuejinqu.com/qimg/922/922867c92215cb77e95d4bde27b14df7.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)