专八改错练习专四专八考试

文章作者 100test 发表时间 2011:02:28 21:30:29
来源 100Test.Com百考试题网

　　The hunter-gatherer tribes that today live as our prehistoric human __1__
　　ancestors consume primarily a vegetable diet supplementing with animal foods __2__
　　An analysis of 58 societies of modern hunter-gatherers, including the Kung of southern Africa, revealed that one-half emphasize gathering plants foods,