- 毕业论文Nomatterwhomyouask,theanswerwillbethesame:eyearof2000,527millionheadsofpigswereslaughtered,andnearly50%ofallporkintheworldisnowproducedinChina(NBSC,FAO,USDA,2002).1.3billionconsumersseemtopreferporkoveranyothermeatsintheirmeals-essentiallyall...
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