dog book friend family name |
1.This is my
![](http://static.xuejinqu.com/qimg/5e9/5e9d48739a86f9334fca369b9a38610d.png)
2.—Who’s that?
![](http://static.xuejinqu.com/qimg/8b1/8b18f2dab79a893c21819d211d0c38f0.png)
—She’s my
3.—What animal is it?
![](http://static.xuejinqu.com/qimg/80d/80dff4129f982e25a667e78a2576dd60.png)
—It’s a
4.—What’s this?
![](http://static.xuejinqu.com/qimg/f39/f39f38c7a20de9ff149c8b1959589825.png)
—It’s a
5.His
![](http://static.xuejinqu.com/qimg/190/1907a19aafe1243079d5578cfac94615.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)