1. What’s this? It’s a tomato.
2. What’s that? It’s a mushroom.
3. Is it a carrot? Yes, it is.
4. These are potatoes
5. Those are beans.
![](http://static.xuejinqu.com/qimg/38d/38d88a43540cc30c9b43e627a561e911.png)
![](http://static.xuejinqu.com/qimg/228/2285b481d1736c6626834220da57d0c0.png)
![](http://static.xuejinqu.com/qimg/4ee/4ee6e53ec2cbc1ac81bbfca8232a8e3b.png)
![](http://static.xuejinqu.com/qimg/1a6/1a663b5f9509faae4e06a111b5450d5a.png)
![](http://static.xuejinqu.com/qimg/62c/62cc5befaa6ff5f5985bcb338b28b410.png)
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![](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)