搜索
| What did you do there? When did you arrive there? Where did you go at the weekend? How did you go there? |
Daming: Hi, Lingling. How are you?
Lingling: I’m fine, thanks.
Daming: I went to the Great Wall with my father.
Lingling:
Daming: We went there by bus.
Lingling:
Daming: We arrived there at ten o’clock in the morning.
Lingling:
Daming: I took lots of photos. I’ll send you some.
Lingling: Oh, that’s great! Thank you, Daming.
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
