A. —What’s this? —It’s a pencil. B. —Do you like yellow? —No, I don’t. C. —Can you read? —Yes, I can. D. —What color is this? —It’s red. |
1.
![](http://static.xuejinqu.com/qimg/d4b/d4b93dd0f5e0d48fae0cac16c7a1c331.png)
2.
![](http://static.xuejinqu.com/qimg/0c1/0c136cba565625962c98c3c82ea96961.png)
3.
![](http://static.xuejinqu.com/qimg/fef/feffe35afc9eae13092c66f8e741c856.png)
4.
![](http://static.xuejinqu.com/qimg/604/60422b86a33250b98d6124652a29e6c2.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)