单词：Benedict-Hitchcock's uric acid reagent
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Acid Rain 酸雨 Damage from acid rain is widespread - not just in eastern North America, but throughout Europe, Japan, China, and Southeast Asia. Is the rain that's falling on your umbrella acidic? A listener's question -- on today's Earth and Sky. J
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Children's Asthma Not Eased by Anti-Reflux Drug Seventeen-year-old Alaina Kvapil was diagnosed with asthma when she was 13. When you have an asthma attack, your airways actually close up and people dont realize that you cant breathe, you cant get the
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How does acid deposition affect human health? We eat food, drink water, and breathe air that has come in contact with acid deposition. Canadian and U.S. studies indicate that there is a link between t
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SCIENCE REPORT — March 7, 2002: Alzheimer’s Disease By Nancy Steinbach This is the VOA Special English Science Report. Medical researchers say a new study shows a link between the mental condition
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Serbia Declares 3 Days of Mourning for Flood Victims 塞尔维亚哀悼洪灾遇难者 Serbia has declared three days of mourning for more victims of the worst floods to hit the country in more than a century. Severe flooding this month has killed at
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Amygdala's Acidic Aspiration Answer A study in the journal Cell shows that the buildup of carbon dioxide when we stop breathing causes a pH change that signals proteins in the brain to force us to inhale. Karen Hopkin reports. Maybe its happened to y
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