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- 共用题干 SleepingPeople who sleep for more than eight hours a night do not live as long as those who sl...
- 共用题干 More about Alzheimers DiseaseScientists have developed skin tests that may be used in the futu...
- 共用题干 Life Expectancy in the Last Hundred YearsA hundred years ago,life expectancy in developed coun...
- 共用题干 A Heroic WomanThe whole of the United States cheered its latest hero,Ashley Smith,with the Fed...
- 共用题干 Prolonging Human LifeProlonging human life has increased the size of the human population. Man...
- Everybody was glad to see Mary back.
- 共用题干 Going on a DietA typical person needs about 1,800 calories per day to stay alive. These calori...
- 共用题干 第二篇High Stress May Damage MemoryAccording to a report issued in May 1998,elderly people who ha...
- 共用题干 Every Dog Has His SayKimiko Fukuda always wondered what her dog was trying to say. Whenever sh...
- 共用题干 Promising Resnlts from Cancer StudyA new experimental vaccine（疫苗）has shown promising results i...