搜索
Today, all sunglasses and gloves are five yuan! They are very cheap.
We have many nice scarves, too. Red, yellow, brown and more!
Umbrellas are cheap, too. We have many pretty colours for you.
Come and see us today!
1．Are the sunglasses expensive? ( )
| A．Yes, they are. | B．No, they aren’t. |
| A．Yes, I can. | B．No, I can’t. |
| A．They’re eight yuan. | B．They’re five yuan. |
| A．They’re five yuan. | B．They’re ten yuan. |
| A．four pairs of gloves | B．five scarves |
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
