A.About six hundred students. |
B.Yes, there were. |
C.But the school was small at that time. |
D.Yes, there was. |
E.Was there a computer room thirty years ago? |
Wu: Yes, I was. 1. _____
Liu: Was there a library?
Wu: 2. _____But there weren’t so many hooks in it.
Liu: Were there any trees?
Wu: 3. _____Look, they are still here.
Liu: 4. _____
Wu: No, there wasn’t.
Liu: How many students were there at that time?
Wu: 5. _____
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