单词：chemical engineering process
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> 08 新型塑胶制品的应用 DATE=3-1-01 TITLE=SCIENCE REPORT- Self-Healing Plastic BYLINE=Mario Ritter (Start at 59
科技之光
Let's talk about the best paying jobs for college grads class of 2006. Some new numbers out here ,and Miles,you got it right, engineers, at the top of the list. The number is here, going up a little b
万花筒2006年
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英文语法词汇
Despite his autocratic nature -- he never worshipped at the altar of consensus 虽然乔布斯天性独裁专制，从不寄望于共识， Jobs worked hard to foster a culture of collaboration at Apple. 但他却着力在公司内部营造出一种合
乔布斯传
JEFFREY BROWN:And now to part two of our investigative look at the safety of America's drinking water. Science correspondent Miles O'Brien reports on the toxic chemical made famous in the movie Erin Brockovich, its potentially harmful effect on human
PBS访谈环境系列
JUDY WOODRUFF: A few drips of good news greeted residents of West Virginia today, but the fallout from last weeks chemical spill is far from over. There's finally relief for some of the 300,000 West Virginians who've been unable to drink, cook or eve
PBS访谈健康系列