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- 共用题干 Can Loud Music Cause Hearing Impairment（损伤）?Have you ever gone to a concert and realized that ...
- 共用题干 The Spanish Flu EpidemicIf youre worried about the possibility of a coming bird flu epidemic,y...
- 共用题干 The Worlds Best-Selling MedicineSince ancient times,people all over the world have used willow...
- 共用题干 What Is Anthrax（炭疽）?Theres been a lot of talk about anthrax on the news lately.Some people are...
- 共用题干 第一篇 Crystal EarOne day a friend asked my wife Jill if I wanted a hearing aid.He certainly does...
- 共用题干 Facts about Stroke1 Every 45 seconds,someone in America has a stroke.Every 3. 1 minutes,someon...
- 共用题干 Chimpanzees1 Chimpanzees（黑猩猩）will soon be extinct（灭绝）.If the present rate of hunting and habit...
- 共用题干 Promising Resnlts from Cancer StudyA new experimental vaccine（疫苗）has shown promising results i...
- 共用题干 Cancer Drug Trials Often Halted EarlyAn increasing number of clinical trials for new cancer tr...
- 共用题干 World Heart Day Sunday was World Heart Day.The World Heart Federation and its member groups ...