单词：lignine plastics
单词：lignine plastics 相关文章
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Pope Benedict XVI waves to faithful during his weekly general audience at St. Peter's square at The Vatican, 17 Mar 2010 Pope Benedict has written to Catholics in Ireland to apologize for the sexual abuses carried out by the clergy in that country ov
VOA标准英语2010年(三月)
The assassination of the governor of Pakistan's Punjab province was a shock, coming as it did in the middle of a political crisis for the government. Analysts believe it will have no direct major effect on the central government's precarious stabilit
VOA标准英语2011年(一月)
By Paul Sisco Washington, DC 07 July 2006 watch Asteroid report A major asteroid passed by the Earth this week, and another is heading this way. An asteroid visible in the night sky Asteroids are similar to comets and meteors. But they are larger, m
2006年VOA标准英语（七月）
Giving the Seedligns a Hand A man of the state of Song was worried about his seedlingsgrowing too slowly He pulled up the seedlings one by one and went home exhausted．I am tired out today．I helped the seedlings to grow，he said to his family．H
趣味英语
An international group of scientists has engineered an enzyme which they say will be able to eat some of the most common plastic. It's being touted as a possible way to fight pollution. Improvements aimed at making the enzyme work more effectively ar
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