仔细阅读：

　　57)A) A person’s hair may reveal where they have lunch

　　58)B) Food and drink leave traces in one’s body tissues

　　59)D) The water it delivers becomes slighter when it moves inland

　　60)C) A map showing the regional differences of tap water

　　61)D) It helps police narrow down possibilities in detective work


09年6月四级考试仔细阅读答案(恩波): http://insuns.com/article/18748-1.html