搜索
Saleswoman: Hello.
Lily: Yes. I want to buy a pencil sharpener.
Saleswoman: What colour do you like?
Lily:
Saleswoman: Do you like this one? It is yellow.
Lily: Oh, it looks great!
Saleswoman: It is 25 yuan.
Lily: OK,
Saleswoman: Let me put it in a paper bag for you.
Lily:
Saleswoman: You are welcome.
| A．I like yellow. |
| B．How much is it? |
| C．Thanks a lot. |
| D．I’ll take it. |
| E．Can I help you? |
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
