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B: Yes.
A: What else did you do?
B:
A:
B: We went there by car. Now it’s convenient(方便) for us to go.
A: Now, life is better and better.
B:
| A．But thirty years ago, only rich people could travel by car. |
| B．It was great fun. |
| C．How did you travel(旅行)? |
| D．I went to Guangzhou with my family. |
| E．Yes, we can also take high-speed train and plane. |
| F．When did you go to Guangzhou? |
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
