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- The Enemy Within Allergy has become me me common over the last 30 years. Now one-thirdof us are aff...
- 共用题干 Using HIV Virus to Cure CancerScientists are planning to use human immuno deficiency（免疫缺陷）viru...
- 共用题干 Stem Cell Therapy May Help Repair the HeartAccording to scientists in the USA,stem cell therap...
- 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 Stomach UlcerStomach ulcers are the cause of severe pain for many people.Doctors have been abl...
- 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 The Drink Your Body Needs MostI Our bodies are estimated to be about 60% to 70% water. Blood i...
- Her novel depicts an ambitious Chinese.
- 共用题干 Chimpanzees1 Chimpanzees（黑猩猩）will soon be extinct（灭绝）.If the present rate of hunting and habit...