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Li Liang:
Zhao Fei: Happy birthday to her!
Li Liang:
Zhao Fei:
Li Liang: We will have a birthday party for her.
Zhao Fei: Sure. When is it?
Li Liang:
Zhao Fei: OK. See you then.
Li Liang: Bye.
| A．Will you come? |
| B．Thank you! |
| C．At 6:00 p. m. |
| D．Because today is my mother's birthday. |
| E．What will you do for your mother on her birthday? |
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
