例:清晨,山谷里升起了云雾。→清晨,浓浓的云雾从山谷里升起来,白白的,柔柔的,像一条带子,轻飘飘地绕着大山,不断地向上升腾。远处的村庄是怎么也看不清楚的,只听见公鸡“哩瑕”的打鸣声和小鸟“啾啾”的鸣叫声,沉睡了一夜的村庄开始醒了。
鱼缸里,有几条金鱼在游动。→
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