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（Daming邀请Sam来家里做客，但是Sam找不到路，于是Sam询问旁边的警察）
Sam:
Policeman:
Sam:
Policeman:
（过了很久，Sam还是没有找到Daming家，于是打电话给Daming）
Sam: Daming,
Daming:
Sam: I’m at No. 8 Xihu Street.
Daming: I live at No. 18 Xihu Street, not No. 8.
| A．Thank you so much! |
| B．Where are you? |
| C．Go straight on. |
| D．You’re welcome. |
| E．Excuse me. |
| F．I’m lost. |
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
