Peter: Hi, Amy! Look at all kinds of fruits here.
Amy: Wow, they are so nice!
Peter: Look! What’s this?
Amy: It’s a yellow p1., and this is an a2., a pink p3. and a big brown c4..
Peter: You’re right! And what’s that?
Amy: Oh, It’s a big w5., and that’s a grapefruit, a mango and an o6..
Peter: You’re great! Look here! Are they yellow b7.?
Amy: Yes, they are. They are big and sweet.
Peter: Look there! What are those? Are they l8.?
Amy: Oh, no! They are s9.. These are lychees.
Peter: D10. you like fruits?
Amy: Yes, I like them because they are yummy. Can I have a coconut?
Peter: Sure. We’ll buy some there.
![](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)