There are some steps you can take
yourself to avoid catching a cold. Contrary to popular belief, colds are not
caused by exposure to severe weather. Colds are caused by viruses(病毒)harbored in
the body, and you’ re better off out on the ski slopes or even waiting for the
bus on a snowy day than you are in a toasty warm room, surrounded by friends,
co-workers, or fellow students, who just may be passing the virus around. If you
feel a chill when you’re coming down with a cold, you’re already sick. A chill
is an early symptom: It’s the cold that caused the chill, not the other way
around. While the virus can spread through droplets propelled
into the air when a cold-sufferer coughs or sneezes, surprisingly, this is not
the most common route of transmission. Numerous studies have now shown that the
over
更多"阅读下面这篇短文,短文后列出7个句子,请根据短文的内容对每个句子做出判"的相关试题:
[单项选择] 阅读下面这篇短文,短文后列出7个句子,请根据短文的内容对每个句子做出判断。
{{B}}Most Adults in
US Have Low Risk of Heart Disease{{/B}} More than 80 percent of US
adults have a less than 10-percent risk of developing heart disease in the next
10 years, according to a report in the Journal of the American College of
Cardiology. Just 3 percent have a risk that exceeds 20 percent.
"I hope that these numbers will give physicians, researchers, health
policy analysts, and others a better idea of how coronary heart disease is
distributed in the US population," lead author Dr. Earl S. Ford. from the
Centers for Disease Control and Prevention in Atlanta, said in a
statement. The findings are based on analysis of data from
13,769 subjects, between 20 and 79 years of age, who participated in the Third
National Health a
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