The hydraulic caliper disc brake system with air-over-oil is widely adopted at present for heavy vehicles,which makes us......

I am now living in Taiyuan, one of the most seriously polluted cities in the world. How I regret that I live in this cit......

1. 假如你叫李林，在聊城二中（环湖路67号）学习。你校附近有一条河流，过去河水清澈。但自从一家化工厂搬来后，大量污水排入河中，致使河水......

重点单词　　1. paper n. 纸;纸张　　paper表示“纸;纸张”时，是不可数名词。　　a piece of paper 一张纸　　（1）paper可作定语，如：pa......

Objective To investigate the influence of the polluted SY River on children’s growth and sex hormones,and provide scien......

2009年的福建卷高考英语有这样一道考题:　　—Why does the Lake smell terrible?　　—Because large quantities of water__.　......