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Xiyangyang:
Meiyangyang: Yes, please.
Xiyangyang:
Meiyangyang: I want some salad, please.
Xiyangyang:
Meiyangyang: I want a bottle of juice.
Xiyangyang: It's fifty dollars and fifteen cents.
Meiyangyang: Here you are.
Xiyangyang:
| A．Thank you! Enjoy your meal! |
| B．How much is it? |
| C．What do you want to drink? |
| D．Can I help you? |
| E．What do you want to eat? |
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
