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Alex: Yes, I am. It is a programme about my school.
Simon:
Alex: Yes, it is. But it was very small ten years ago.
Simon: Was there a library then?
Alex:
Simon:
Alex: No, there weren’t. Now our school has got enough computers for teachers and students.
Simon: Wow!
| A．No, there wasn’t. |
| B．Are you watching a television programme now? |
| C．Your school is changing really fast (快地). |
| D．Is your school big and beautiful? |
| E．Were there any computers then? |
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
