(1)这地方的火烧云变化极多,一会儿红彤彤的,一会儿_______,一会儿半紫半黄,一会儿半灰半百合色。
(2)垂柳把溪水当作梳妆的镜子,山溪像__________一样平静。人影给溪水染绿了,钓竿上立着一只红蜻蜓。忽然扑腾一声人影_______,草地上跳跃着鱼儿和笑声。
(3)赵州桥是隋朝石匠____设计并参加建造的,到现在已经有_______年了。

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

