搜索
Waiter (服务员): Good afternoon.
Mum: We want some drinks and dessert (甜点).
Amy:
Mum: What about you, Sam?
Sam: Hmm. I want a cola with ice.
Mum: A cola is not good for children.
Sam: Hmm. I want an ice cream. Mum: I want an ice cream too. I like it very much.
Waiter: Do you want some hamburgers or sandwiches?
Mum:
Waiter: OK, a bottle (瓶) of orange juice and two ice creams.
Mum:
Waiter: It’s 30 yuan.
| A．How much is it? |
| B．Can I help you? |
| C．No, thank you. |
| D．Orange juice, please. |
| E．What do you want, Amy? |
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
