A: Hi, Rose. Do you like travelling around the world?
B: Yes, I do. I like travelling to different places. I was on vacation last month.
A:
B: I went to Beijing on vacation. It is one of the most famous cities that I have ever known.
A: Yeah, Beijing is the capital of China. Did you go anywhere special there?
B: Yes, I did. I went to the Great Wall with some Chinese friends.
A:
B: It is wonderful. As far as I know, there are no other man-made objects as big as this. It is the longest wall in the world.
A: Wow, that’s amazing!
B: Everything tasted really good! There was lots of delicious food in Beijing. And I bought some Beijing duck for my parents.
A: That sounds great!
B: I have been there for ten days.
A: Did everyone have a good time?
B: Yes, a lot of fun.

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

