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| A. It’s 150 yuan. B. Do you like these blue ones? C. How much are they? D. Can I help you? E. Here you are. F. Do you want anything else? |
B: Yes, please. I want to buy a pair of jeans.
A: 2．
B: They’re OK. 3．
A: They are 99 yuan.
B. Wow! That’s good. I’ll take them.
A: 4．
B: I also want to buy a coat. How much is that blue one?
A: 5．
B: I’ll take it.
A: OK. 99 and 150 is 249 yuan, please.
B: 6．
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
