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B: Yes, please. I want a sweater for my son.
A:
B: Green or red.
A: Look at the sweaters over there. We have all colors. Which one do you like?
B: I think the green one is nice.
A: It’s 150 yuan.
B: Oh, it’s too expensive.
A:
B: It’s cheap, but it’s big.
A: Yes. Here you are.
B: OK! I’ll take it.
| A．What color do you want? |
| B．Can I help you? |
| C．Do you have a small one? |
| D．How much are they? |
| E．What about this one? |
| F．What’s the price? |
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
