( ) 1. John lives in London. A
![](http://static.xuejinqu.com/qimg/80a/80a6f173b850e628251b26e70f7561ad.png)
( ) 2. Let’s buy some ice creams. B
![](http://static.xuejinqu.com/qimg/ee3/ee32ddad09756772385a09225424b452.png)
( ) 3. Lingling sent an email to Ben. C
![](http://static.xuejinqu.com/qimg/bcf/bcface9163e37fb5c3fc7d0bd121a738.png)
( ) 4. We bought two pears. D
![](http://static.xuejinqu.com/qimg/089/0898369dbf4d136ff5c7afec2fba8c79.png)
( ) 5. —How much cheese did you buy? E
![](http://static.xuejinqu.com/qimg/61e/61ebebb4453110abbf2eddbba6e79ff4.png)
—Half a kilo.
![](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)