(1)夏夜,满天繁星,像一颗颗宝石着夜空,美丽极了。在的月光下,贪玩的孩子们在院中挂满的围墙边地跑来跑去,坐在屋下的老人摇着扇子,小猫趴在主人的脚边睡大觉,这构成了一幅温馨的图画。
(2)虽然已经是晨了,街上却十分热闹,警察叔叔仍在坚守,维持。
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