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A: Can I help you?
B: 1．
A: 2．
B: I’d like a chocolate pudding.
A: 3．
B: I’d like a heart-shaped pudding.
A: Anything else?
B: 4． How much are they?
A: 70 yuan.
B: Here is the money.
A: Thank you.
B: 5．
| A．You’re welcome. |
| B．What shape would you like? |
| C．I’d like some cherries, too. |
| D．What kind of pudding would you like? |
| E．Yes. I want to buy a pudding. |
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
