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| Is the green one yours? Whose is it? How about the blue one? What will you do there? Which one is yours? |
Oliver: So many bikes here. Are they all yours?
John: No.
Oliver: The red one is very nice.
John: It’s Sarah’s.
Oliver:
John: No, it’s Wu Binbin’s.
Oliver:
John: The black one is mine.
Oliver:
John: The blue one is John’s.
Oliver: But why are there so many bikes?
John: We’ll have a school trip. We will go by bike.
Oliver:
John: We will take pictures, play games and go on a picnic there.
Oliver: Great!
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
