in on near under behind |
1.—Where are the books?
— They're
![](http://static.xuejinqu.com/qimg/79a/79a5bbbbd8bc9dc5fd00f0bb48afae76.png)
2.—Is the ball on the bed?
—No, it's
![](http://static.xuejinqu.com/qimg/303/3031b15febac6a88a2aa290d5c1a75ec.png)
3.—Where are the trees?
—They are
![](http://static.xuejinqu.com/qimg/1b0/1b0b551c90185e6fea768be7aebc9cc7.png)
4.—Is there a lake (湖)
—Yes, there is.
![](http://static.xuejinqu.com/qimg/658/658c4bcb608d2826afa1a7496cbcd111.png)
5.—Where is the mouse?
—It's
![](http://static.xuejinqu.com/qimg/94d/94da6c7c654e0ba8df9365a4960cfb6d.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)