维生素C,抗坏血酸

VOA慢速英语--非营利组织帮助纽约的老年移民

Nonprofits Help Elderly Immigrants in New York City For five hours a day, three days a week, more than 150 aging Bangladeshis exercise, eat, pray and talk together at the Jamaica Muslim Center in Queens, New York. A few kilometers away, at the Desi S

发表于:2018-12-07 / 阅读(38) / 评论(0)

2017年VOA慢速英语(七)月

Nigerian Wives, Mothers of Detainees Say Their Men are Not Boko Haram

At sundown in Nigeria, children are playing a game called egalagala. The children play near their home. As they play, their mother looks sad. Their two older brothers, Abuna and Dunoma, are missing. They were arrested in 2013 by Nigerian soldiers. Th

发表于:2019-01-03 / 阅读(50) / 评论(0)

2018年VOA慢速英语(十)月

CNN 2011-08-15

We start in Philadelphia where three young men have turned themselves in to face assault charges. This is where these violent flash mob attacks plaguing the city. Police say these men actually put a man in the hospital. The mayor there has promised c

发表于:2019-01-08 / 阅读(176) / 评论(0)

CNN2011年(八)月

VOA慢速英语 2008 1022a

This is the VOA Special English Health Report. Autumn and winter are cold and flu season -- when people are most likely to catch the viruses that cause influenza and the common cold. Is the old advice true that dressing warmly will help prevent a co

发表于:2019-01-11 / 阅读(52) / 评论(0)

VOA慢速英语2008（十）月

Vitamin C and DNA

67 维生素C能否破坏DNA？ DATE=7-11-01 TITLE=SCIENCE REPORT - Vitamin C and DNA BYLINE=Nancy Steinbach (Start at 59

发表于:2019-01-30 / 阅读(66) / 评论(0)

科技之光

经济学人274:法国想出口核反应堆,谁人将买?

French nuclear energy 法国核能 Under pressure 压力之下 France wants to export nuclear reactors. Who will buy them? 法国想出口核反应堆，谁人将买？ FOR France, nuclear power has long been a source of national pride. Its European

发表于:2019-02-24 / 阅读(69) / 评论(0)

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carbon black microstructure