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A: Welcome to my school, Miss Liu.
B: Oh, your school is nice.
A: Thank you. Let me show you around.
B: Thank you.
A: This is our playground. It's very big. We can play, run and jump here.
B: I think you are very happy.
A: Yes. And this is our canteen. We have lunch here. You can see many chairs and tables. Near it, there is a computer lab. There are many computers in this room. It's super.
B: What is this place?
A: It's a library. We can read book here. There are many books here. We like reading books.
B: Is this a classroom?
A: No, it's our gym.
B: How big!
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
