轰隆隆——远处传来了雷声。这声音对长期盼望下雨的人们来说既熟悉又( )。喧闹的环境立刻变得( )了,大家都在仔细地听着。先是细微的沙沙声,接着声音不再单调,渐渐( )起来。像钟表的滴答声,像珠子在瓷盘上的跳跃声……坚硬的泥土( )了,人们的心里好像有一扇关闭很久的窗子( )了。
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