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| A．How much is it? |
| B．What do you want do drink? |
| C．I want some noodles. |
| D．Thank you! |
Waitress: Welcome to our restaurant. Can I help you?
Lily: ________1_______ How much is it?
Waitress: It’s five yuan. ________2__________
Lily: I want three bottles of juice and a cola. How much are they?
Waitress: ____________3___________
Lily: And two hamburgers, too.
______________4_______________
Waitress: It’s four yuan.
Lily: Here you are.
Waitress: ____________5______________
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
