VOA慢速英语2012.07.09
[audio]http://sound.yywz123.com/tingbbs/voa/voa20120709.mp3[/audio]A study has raised questions about a widely held belief involving cholesterol. The belief is that high levels of so-called good cholesterol in the blood can reduce the risk of a heart attack. The medical name for "good" cholesterol is high-density lipoprotein, or HDL. 一项研究对有关胆固醇的普遍观点提出质疑。这种观点就是，血液中所谓“有益的”胆固醇含量高可以减少心脏病的风险。这种“有益的”胆固醇的医学名字叫高密度脂蛋白（HDL）。
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**** Hidden Message ***** A study has realized questions about widely held belief involving cholestrol, the belief is that high leves of so called good cholesterol in the blood can reduce the risk of a heart attack, the medical name for good cholestrol is high density ? or HDL.
that is commonly believed that reduces the risk of a heart attack by removing ? parasites that can block the flow of blood in the artrise f the heart 3k that is commonly believed that reduces the risk of a heart attack by removing fatty deposits that can block the flow of blood in the artrise f the heart
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