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Tim and Dino feel hungry.They go into a restaurant.
Waitress: Good afternoon. 1．
Tim: I’d like some milk and a hamburger, please.
Waitress: 2．
Dino: I’d like some cakes.
Waitress: Do you want some juice, Dino?
Dino: 3．
Tim: How much are they?
Waitress: 4．...
Waitress: 5．
Tim and Dino: Thank you.
| A．How about you, Dino? |
| B．They are 20 yuan. |
| C．Here’ s your food. |
| D．Can I help you? |
| E．Yes, please. |
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
