(1)万里长城东起_____________,西到____________;京杭大运河北起____________,南到_____________。
(2)____________的南沙海域,连________都是美的,_____________,_________,仿佛是欢迎的人群在____________________。
(《美丽的南沙群岛》)
(3)《庐山的云雾》一课,描写了庐山云雾的_____________、
______________两个特点,字里行间流露出作者对____________________________________的热爱之情。

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

