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I'm going to visit Hainan this holiday. I'm going to visit my grandpa. I'm going to get up at 5 o'clock. I'm going by plane! I'm going to swim in the sea.
Beijing | Sichuan | Qingdao | Qinhuangdao | Harbin | … |
5:00 | 6:00 | 9:00 | 2:00 | l:00 | … |
visit the Great wall | visit the pandas | swim | swim | go skating | … |
train | plane | train | plane | plane | … |
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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
