搜索
A: Good afternoon!
B: Yes! I want a bag.
A:
B: I like red.
A: This one is nice. Do you like it?
B:
A: Look at this one.
B: That’s lovely! I’ll take it.
A: Forty-five yuan.
B:
A: Thank you.
| A．What colour do you like? |
| B．Here is the money. |
| C．Can I help you? |
| D．How much is it? |
| E．I think it’s too big for me. |
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
