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Policeman: Hi, little girl.
Lingling: I can’t find my mum.
Policeman: Oh, don’t worry. I can help you. What’s your name?
Lingling: Lingling.
Policeman:
Lingling: I live in Shenzhen.
Policeman: OK.
Lingling: Yes, it’s 16253382.
Policeman: OK.
Lingling: Thank you.
| A．Let me call your mum. |
| B．Why are you crying? |
| C．We are on holiday in Beijing. |
| D．Where do you live? |
| E．Do you know your mum’s phone number? |
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
