搜索
B: This is John.
A: Yes, I am.
B:
A: I’m cleaning my room.
B:
A: Yes, I do.
B: We are going to play in the park at 3:00 pm.
A: OK. Two hours to go. I can clean my room and go there by bike.
B: See you then!
A: See you.
| A．What are you doing? |
| B．When are we going to play? |
| C．Are you in the park? |
| D．Who is that? |
| E．Do you want to play football? |
| F．Are you at home? |
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
