Board logo

标题: [视听材料] 雅思入学测试题(6.5高分班) [打印本页]

作者: shimianmaifu    时间: 2016-1-29 13:01     标题: 雅思入学测试题(6.5高分班)

雅思入学测试题(6.5高分班)
At DuPont, researchers have used both yeast and bacteria as hosts to grow the raw material, which they have spun into fibres. Robert Dorsch, Dupont’s director of biochemical development, says the globules of protein, comparable with marbles in an egg, are harvested and processed.【资料下载】雅思入学测试题(6.5高分班)




欢迎光临 英语听力论坛 (http://bbs.tingroom.com./) Powered by Discuz! 7.2