( ) 1. It's rainy.
![](http://static.xuejinqu.com/qimg/4e9/4e96e2eb29eecf0eb8157a08fb69fe64.png)
( ) 2. It's windy today.
![](http://static.xuejinqu.com/qimg/83d/83d9cf12ce8945c94c79d879300ccdc8.png)
( ) 3. It's sunny today.
![](http://static.xuejinqu.com/qimg/7e9/7e9149c97ec36c38251b3f607df07e42.png)
( ) 4. Tom is going to run a race.
![](http://static.xuejinqu.com/qimg/29f/29fb11eb23c09bcffa675ca559a3d9ba.png)
( ) 5. It's cloudy.
![](http://static.xuejinqu.com/qimg/74b/74bd9915a564fc33f3c39d90f87197a7.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)