![](http://static.xuejinqu.com/qimg/a06/a06b979d70b13c1c0e2ede6cc4dd1a34.png)
![](http://static.xuejinqu.com/qimg/5e6/5e6ea6ca2b56bfb637f778a82f956f3d.png)
![](http://static.xuejinqu.com/qimg/b03/b03e96dfca3d03d68c6f142d70cc98c4.png)
D.
![](http://static.xuejinqu.com/qimg/8e9/8e9a869297eb00fa74fa286e2b8ee5ad.png)
![](http://static.xuejinqu.com/qimg/ce3/ce38ea3fcd2d60fe237acde5506e3df3.png)
1.—Touch your nose. —This is my nose.
2.—Nice to meet you. —Nice to meet you, too.
3.—Goodbye. —Goodbye.
4.—Look! He's my grandpa. He's a doctor. —Cool.
5.—What's your name? —My name's Guo Yang.
![](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)