国际红十字会援助巴基斯坦 (1)
提示:Bajaur; Carla; Haddad
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- 傲慢与偏见第四章
为什么会有男人和女人?
这是关于人类性别的文章。Why are there males and females? Why are there two sexes instead of three, or twelve, or one? On todays’s Moment of Science we'll learn why two is the magic number. L...
慢跑可以长寿噢 (1)
Walter Bortz 博士是一位长寿专家,他说有规律的运动是老年健康的关键。Walter BortzA group of more than 300 runners over the age of 50 were tracked by Stanford University researchers starting in 1984...
艾滋病病毒 (1)
纽约健康和卫生局称本报告是目前为止,对该市艾滋病感染评估最为精确的报告。提示: Monica SweeneyNew York City's Department of Health and Human Hygiene said the report is the "most precise estimate y...
战火纷飞伊拉克(1)
由于连年战乱和经济困难,联合国预计超过六百万的伊拉克人民急需帮助...The United Nations estimates up to six million people in Iraq are in dire need of help because of years of violence and economic...