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Liu Dong: Did you watch the Games on TV?
Wu Chen:
Liu Dong: Tell me something about it.
Wu Chen: The Games began on August 8, 2008.
Liu Dong: Do you know the slogans?
Wu Chen: Yes.
Liu Dong:
Wu Chen: No. We can’t see the skating at the Summer Olympics.
Liu Dong: Oh, Thank you. Let’s watch them together.
| A．When did the 29th Olympic Games begin? |
| B．One world, one dream. |
| C．Can we see the skating? |
| D．Yes, I did. |
| E．We can see swimming and boating. |
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
