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A: Excuse me. 1.________
B: Sure!
A: 2.________
B: Sorry, I’m new here. 3._________
A: 4.______How can I get to the post office?
C: Go down this street, and then turn right at the shoe shop.
A: 5.________
C: You’re welcome.
| A．Excuse me, sir. |
| B．Thanks a lot. |
| C．Can you help me? |
| D．You can ask the man over there. |
| E．Where is the post office? |
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
