进入天山,蓝天衬着矗立的巨大的雪峰,在太阳下,几块白云在雪峰间投下云影,就像
再往里走,是蜿蜒无尽的翠绿的原始森林,密密的森林像
(1)无数撑开的巨伞 (2)千万朵盛开的白莲
(3)千万条闪亮的瀑布 (4)白缎上绣上了几朵银灰色的暗花
(5)千万条闪耀的银练 (6)千万朵玲珑剔透的白莲
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