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Lanlan:
Tongtong: Oh, it is so interesting.
Lanlan: Of course. She is 12 years old.
Tongtong: Where does she live?
Lanlan:
Tongtong: Can she speak Chinese?
Lanlan:
Tongtong: What are her hobbies?
Lanlan:
| A．She lives in Canada. |
| B．Yes, I do. |
| C．She likes dancing and painting. |
| D．Can you tell me something about your pen pal? |
| E．Yes, she can. She can speak very well. |
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
