爆竹声声辞旧岁,银花朵朵贺新年。噼里啪啦的爆竹,五彩缤纷的烟花,给人们带来了浓浓的年味和喜庆的气氛,也给环保、安全等方面带来诸多问题和隐患。一些城市在燃放烟花爆竹方面的政策也在不断动摇。那么,春节到底应不应该燃放烟花爆竹呢?请谈谈你的看法。
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