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Helper Serum Boosts Effectiveness of Flu Vaccine Vaccines against swine and avian flu can be made more effective by the addition of a helper serum known as an adjuvant. The finding from a new study could let vaccine makers stretch supplies and possib
VOA标准英语2011年(六月)
听力部分 Dictation: Please prepare your paper and pen. ______ knows ___ and ____ the ________ _______ _______________________ of ______. But ________ people were __________________. Today _________________________that ________________________ is,
王强口语 第二册
Low－salt，low－protein diet can prevent kidney stonesA diet low in salt and meat can dramatically reduce the risk of kidney stones，according to an Italian study that could spell the end for the low－calcium diet that doctors have been recommen
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By Carol Pearson Washington 09 April 2008 Diabetics have a greater than average chance of having a heart attack or stroke. But new research indicates that lowering blood pressure and cholesterol below recommended guidelines seems to reduce these risk
VOA常速英语2008年（四月）
NANCHANG, Feb. 14 (Xinhua) -- China's first patient with the Zika virus was discharged from hospital on Sunday. China confirmed the imported Zika case on Feb. 9. The patient, a 34-year-old man from Ganxian County in Jiangxi Province, developed a feve
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Experts say that some of our most innocent habits could induce serious damage to our skin. With these little shifts, you'll outsmart them all and stay smooth and lovely. 专家告诉我们，一些我们平时经常忽视的生活习惯也能减少对皮
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