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B: 1． Do you want to play a game, Bob?
A: 2． I love games.
B: Close your eyes. Smell it.
A: It’s very nice. Is it juice?
B: 3． Now, open your eyes.
A: It’s red. Is it watermelon juice or cherry juice?
B: Taste it. 4．
A: Oh, it’s cherry juice.
| A．Yes, you are right. |
| B．Very well, thank you. |
| C．What is it? |
| D．How does it smell? |
| E．Sure. |
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
