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β-Amyrin β-香树脂醇 α-Amyrin acetate α-香树脂醇乙酸乙酯 β-Amyrin acetate β-香树脂醇乙酸乙酯 β-Amyrin palmitate 棕榈酰β-香树酯 Anabasine 毒藜碱 Anagyrine 臭豆碱,安
发表于:2019-01-03 / 阅读(70) / 评论(0)
医务英语
Japan is remembering the lethal nerve gas attack on the Tokyo subway system by a religious cult 10 years ago Sunday. A decade after the incident, legal appeals drag on, and survivors say they are suffering with little outside support. 这个星期天日
发表于:2019-01-19 / 阅读(65) / 评论(0)
VOA双语新闻 Bilingual News
电影制作人 Penelope Jagessar Chaffer对她在怀孕期间面临的化学制品很好奇。它们会不会影响她未出生的宝宝?她让科学家Tyrone Hayes简要介绍他研究很深的课题:阿特拉津,一种用于玉米上的除虫剂
发表于:2019-02-05 / 阅读(59) / 评论(0)
TED公开课:环境 重造计划
Russias news network Zvezda is reporting that the countrys new intercontinental ballistic missile will be ready for field trials this summer. The RS-28 Sarmat, dubbed Satan 2 by NATO, has been widely reported to have a top speed of seven kilometers a
发表于:2019-02-18 / 阅读(80) / 评论(0)
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