1.一曲无字的歌谣,神奇地从四面八方飘然而起,逐渐清晰起来,响亮起来,由远而近,由远而近……
作者将
2.声里,山中的每一块岩石、每一片树叶、每一丛绿草,都变成了奇妙无比的琴键。飘飘洒洒的雨丝是无数轻捷柔软的手指,弹奏出一首又一首优雅的小曲,每一个音符都带着幻想的色彩。
作者将“岩石、树叶、绿草”想象“
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