1.赵州桥非常雄伟,全长50.82米,两端宽9.6米,中部略窄,宽9米。(
2.石拱桥的桥洞呈弧形,就像虹。(
3.中国古代的石拱桥,著名的有河北赵县的赵州桥和北京永定河上的卢沟桥。(
4.大家都认为象是很大的动物,其实还有比象大得多的动物,那就是鲸。(
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