氧化苦参碱,羟基苦参碱

SCIENCE IN THE NEWS - Mammograms

SCIENCE IN THE NEWS -February 26, 2002: Mammograms By Jerilyn Watson VOICE ONE: This is Bob Doughty. VOICE TWO: And this is Sarah Long with Science in the News, a VOA Special English program about rec

发表于:2018-12-07 / 阅读(118) / 评论(0)

科技之光

CNN 2010-05-02

U.S. Supreme Court says that a memorial out in the Mojave Desert does not violate the U.S. Constitution. The memorial is a large cross. It was put up in 1934 to honor fallen soldiers. But it's located in a national park, and some people argue that it

发表于:2019-01-08 / 阅读(133) / 评论(0)

CNN2010年(五)月

陨落星辰第二季第18期:与陌生女孩告别

This is bad. We need to keep riding. It's close. 情况很糟，我们最好继续赶路。听起来很近 I don't want to be here anymore! 我不想待在这里了 That's Mech fire. That's a shotgun. That means there's people. 那是械甲怪的火炮

发表于:2019-01-29 / 阅读(156) / 评论(0)

陨落星辰第二季

中国与马来西亚间贸易潜力巨大

中国与马来西亚间贸易潜力巨大 Malaysia is China's biggest trade partner among the member-countries of the Association of Southeast Asian Nations. Trade between China and Malaysia has grown ten-fold over the past decade, reaching some 68

发表于:2019-01-31 / 阅读(154) / 评论(0)

英语新闻

PBS高端访谈:倡导满足生活在印度贫民窟的数百万人的需求和尊严

JUDY WOODRUFF: Next: bringing dignity to people who live in the poorest housing in India and across the world. Fred de Sam Lazaro has a report from Mumbai on a man who founded the movement Slum Dwellers International. It's part of our agents for chan

发表于:2019-02-17 / 阅读(107) / 评论(0)

PBS访谈社会系列

陨落星辰第一季第147期:源源不断的敌人

I guess those Mech bullets really work, huh? Ben. 看来械甲金属弹真的有用。本 Everybody get down! Get down! 大家蹲下，隐蔽 Call out your ammo! 清点弹药 I got two. Three shots left. 还有两发。剩三发 Four. How many more w

发表于:2019-03-02 / 阅读(248) / 评论(0)

陨落星辰第一季

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学英语单词

3-phenyl-proylamine

absolute measurment

abunes

adaptation brightness