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B: Yes, please. I need a new pair of shoes. Where are the shoes?
A: Let me show you. Here they are.
B: My shoes are size 38.
A:
B: These are blue and those are black. I like these.
A: They are 98 yuan.
B:
A: Here you are.
B: Thanks.
| A．How much are they? |
| B．I'll take them. |
| C．May I help you? |
| D．What size are your shoes? |
| E．Do you want these shoes or those shoes? |
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
