A.They’re rowing a dragon boat. |
B.I’m cooking vegetables. |
C.She’s playing with a toy tarin. |
D.It’s next to a supermarket. |
E.Where is the Train 4? |
![](http://static.xuejinqu.com/qimg/f32/f3250c00c38067d73d07efe4f6d13cff.png)
2.火车4号在哪里?
![](http://static.xuejinqu.com/qimg/f32/f3250c00c38067d73d07efe4f6d13cff.png)
3.我正在炒菜。
![](http://static.xuejinqu.com/qimg/f32/f3250c00c38067d73d07efe4f6d13cff.png)
4.她在玩玩具火车。
![](http://static.xuejinqu.com/qimg/f32/f3250c00c38067d73d07efe4f6d13cff.png)
5.他们正在划龙舟。
![](http://static.xuejinqu.com/qimg/f32/f3250c00c38067d73d07efe4f6d13cff.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)