上册unit79高二英语课件
日期：2010-01-14 01:02
000 people are living with HIV/AIDS ，Unit 71What diseases can you think of ?
2 Which of them are deadly diseases?backacheLung diseaseLiver troubleKidney diseaseHIVAIDSHow HIV destroys cellsIt is reported by the UN that in the world 40，100，000， of whom 3，000 have died this yearHow much do you kn，
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