小躯干畸胎

New research reinforces the importance of prenatal iron supplementation for good birth outcomes and continued good health for growing children. Research over the past 20 years have pointed to the importance of micronutrients - substances found in sma

发表于:2018-12-08 / 阅读(32) / 评论(0) 分类 VOA标准英语2010年(十二)月

This is Scientific American's 60-Second Science. I'm Steve Mirsky. This will just take a minute. Pregnant women shouldn't drink. It's become gospel, because of the danger of fetal alcohol spectrum disorder. Alcohol can disturb the normal development

发表于:2018-12-24 / 阅读(85) / 评论(0) 分类 Scientific American(三)月

[00:07.34]Last Tuesday was World Population Day. [00:12.98]The message this year was Saving Women's Livers. [00:18.91]The director of the United Nations Population Fund, [00:24.27]Nafis Sadik,released a statement in ovservance of the day. [00:30.59]D

发表于:2018-12-26 / 阅读(32) / 评论(0) 分类 美国英语听力80篇

New research reinforces the importance of prenatal iron supplementation for good birth outcomes and continued good health for growing children. 最近一些新的研究强调产前补铁对安全分娩和成长中孩子的健康非常重要。 Studie

发表于:2019-01-19 / 阅读(35) / 评论(0) 分类 VOA双语新闻 2011年1月

雅思考试写作的12大万能理由和部分写作思路 1 方便 convenience 2 情感 feeling(or sensibility) 3 经验 experience 4 成就 achievement 5 效率 efficiency 6 健康 health 7 节俭 thrift(or save money) 8 安全 safety 9 性格培养

发表于:2019-02-13 / 阅读(77) / 评论(0) 分类 雅思英语

Sex selection 性别选择 Cat got your tongue? 哑巴啦? Aug 6th 2011 | from the print edition Unnatural Selection: Choosing Boys Over Girls, and the Consequences of a World Full of Men. By Mara Hvistendahl. Public Affairs; 314 pages; $26.99 and

发表于:2019-02-17 / 阅读(41) / 评论(0) 分类 经济学人综合
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