搜索
[[QOrDeR]]( )
| A．We can see three signs． |
| B．We can see four signs． |
| C．We can see more than three signs． |
| A．At seven o'clock． |
| B．At six forty-five． |
| C．At seven fifteen． |
| A．Lucy is swimming with the other boys． |
| B．Alice is running with the boys． |
| C．Nancy is singing with the other boys in the classroom． |
| A．He doesn’t know the old man over there． |
| B．He knows her a little． |
| C．He knows him a little． |
| A．Yes，they are． |
| B．No，they aren’t． |
| C．Sorry，we don’t know． |
A． | B． | C． |
同类型试题
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
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
