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The lone wolfs howl has long been chosen as a symbol of melancholy and loss. Now researchers have demonstrated that the choice was accurate. Howling is not related to the stress level of the crying canine or the dominance status of the departing wolf
Scientific American(八)月
In many countries, prostate cancer is among the leading causes of cancer deaths in men. Doctors rely on a blood test called PSA (prostate-specific antigen) to screen for the disease. But there are big problems with the PSA test. Now, the researchers
VOA标准英语2010年(十二)月
By Gary Thomas Washington 14 December 2006 Iranian woman, wearing the traditional Islamic black veil, looks at campaign posters of female candidate Masoumeh Kolahi, in Tehran, 13 Dec 2006 Iranians are to vote Friday in elections for local government
2006年VOA标准英语（十二月）
Chinese Commerce Minister Gao Hucheng says participants at the meeting agreed that the global economic recovery remains sluggish, trade growth is lingering at a low level, and investment flow has yet to recover to pre-crisis levels. He says G20 count
2016CRI中国国际广播电台
SUVA, Dec. 18 (Xinhua) -- There are 60 typhoid cases in Nanoko, with 29 already hospitalized, according to Fiji's Health Ministry. Senior Health Inspector Paula Laqere said Sunday that the increas means that people are not practicing proper hygiene s
英语新闻
17 Into the Troposphere 第十七章 进入对流层 Thank goodness for the atmosphere. It keeps us warm. 谢天谢地，我们有了大气。它使我们有了个温暖的环境。 Without it, Earth would be a lifeless ball of ice with an average te
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