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A: What did you do last summer holiday?
B: .
A: Did you go swimming in the sea?
B: Sure. It was cool. There were many funny things.
A: .
B: I saw a boat race. The boats were small, but they were very fast.
A: Anything else?
B: . I ate many mangoes and pineapples.
A: You had a really wonderful holiday then .
B: Sure. How about you?
A: I went to visit my grandparents in Xinjiang.
B: .
A: Only me. My grandpa waited for me in the station.
B:Sounds great. .
A: Of course.
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同类型试题
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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
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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
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