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- Practically all animals communicate through sounds.
- 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 Influenza（流感）Influenza has been with us a long time. According to some Greek writers___1___ me...
- 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 Music Used as a Healing Therapy1 .Music has long been used to treat patients suffering from di...
- 共用题干 Many Women Who Beat Cancer Dont Change HabitsMany women who battle breast cancer will tell you...
- 共用题干 第二篇High Stress May Damage MemoryAccording to a report issued in May 1998,elderly people who ha...
- The river widens considerably as it begins to turn west.