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Seller: Hello! Can I help you?
Sam: Yes. It’s cold in Beijing.
Seller: What color do you like?
Sam:
Seller: What size would you like?
Sam:
Seller: Do you like this one?
Sam:
Seller:
Sam: Here is the money!
Seller: Thank you! Have fun in Beijing.
Sam: Thank you! Goodbye.
| A．It’s 200 yuan. |
| B．I want a coat. |
| C．Yes, I do. |
| D．I like blue. |
| E．Size M, please. |
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
