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Lingling: I’m fine, thank you.
Sarah: We visited lots of places.
Lingling:
Sarah: We went to the Great Wall and the Summer Palace.
Lingling: How did you go there?
Sarah:
Lingling: Did you take any photos?
Sarah: Yes, I did.
Lingling:
Sarah: Of course. Here you are.
| A．We went there by bus. |
| B．Where did you go? |
| C．May I look at your photos? |
| D．How are you? |
| E．What did you do last weekend? |
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
