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B: Thank you. It's a picture of my hometown (家乡) —Guang'an.
A: Wow! Tell me more about it. How big is it?
B:
A: Where is it?
B:
A:
B: Yes, there are. They are very beautiful, too.
A: Yes, I do. I want to visit it this winter holiday.
| A．What a nice picture! |
| B．Do you want to visit my hometown? |
| C．It's in the east of Sichuan. |
| D．Are there any lakes or mountains? |
| E．It has got about four million people. |
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
