搜索
Wang Tao: Speaking.
Sally: How are you, Wang Tao?
Wang Tao: I’m at home now. I’m better, but I can’t walk.
Sally:
Yang Ming will help you with your math.
Wang Tao:
Sally: Goodbye.
Wang Tao: Bye.
| A．Don’t worry about your lessons. |
| B．Lily will help you with your Chinese. |
| C．I must stay at home for two weeks. |
| D．May I speak to Wang Tao? |
| E．Oh, thank you all. |
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
