提示:我的家乡位于山脚下,一条小河从村旁边流过。两年前,北面建起了一座化工厂,排出大量废气、废水,制造噪声,使人们晚上睡不好。这不仅对健康有害,而且也影响环境。如今,政府意识到了保护环境的重要性,采取了一系列保护环境、防止污染的措施。我的家乡正变得越来越美。
要求:1. 文章必须包括以上主要内容,可以适当增加细节,使内容连贯。
2. 80词左右。
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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