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Feifei:
Tingting: My mum.
Feifei:
Tingting: Yes. My dad was young too.
Feifei: Who is the cute little girl?
Tingting:
Feifei: How old were you then?
Tingting:
Feifei: Your hair was so long then.
Tingting: Yes. And I was short at that time.
Feifei:
| A．It's me. |
| B．Who is this beautiful woman? |
| C．But now you are tall. |
| D．She was so young then. |
| E．I was five years old. |
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
