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B: Thank you. Where is the teachers' office?
A: The teachers' office? Oh.
B:
A: It's seven thirty. It's time for music class.
B:
A: Yes, I do. And my favourite subjects are PE and music.
B:
A: It's on the third floor.
B: Let's go together.
A:
| A．What time is it? |
| B．Where is the music room? |
| C．Do you like music? |
| D．Hurry up! |
| E．It's next to the library. |
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
