![](http://static.xuejinqu.com/qimg/5fb/5fb2cf62b308c5ce8f7f3eebc8cd8479.png)
2. It has got two legs. It can walk. It can swim, too. b.
![](http://static.xuejinqu.com/qimg/a33/a33adfee3870a795c9b2db9833010906.png)
3. It has got a long nose and two big ears. c.
![](http://static.xuejinqu.com/qimg/514/514a30405e7ee4985d2b719fad92d3a8.png)
4. It lives on a farm. It eats grass. d.
![](http://static.xuejinqu.com/qimg/f14/f148b6adf7ad7ed444144a11512c3e04.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)