2. 外语
  3. A、Rain forests have always possessed insufficient quantities of carbohydrate-rich resources to support foragers without the aid

A、Rain forests have always possessed insufficient quantities of carbohydrate-rich resources to support foragers without the aid

admin2009-05-19  56
问题
选项 A、Rain forests have always possessed insufficient quantities of carbohydrate-rich resources to support foragers without the aid of agriculturalists.
B、The difficulty of raising carbohydrate-rich plant species in certain areas of the rain forest may have led to the arrest of those species’ co-evolution.
C、Trade relationships between agriculturalists and foragers may have been the cause of the disappearance of certain carbohydrate-rich plant species, not vice-versa.
D、Foragers may have been willing to trade carbohydrate-rich plants in exchange for the more nutritious food products of agriculturalists.
E、Environmental changes in rain forest composition may have led to the loss of certain foraging techniques.
答案C
解析
转载请注明原文地址:https://kaotiyun.com/show/6EjO777K
本试题收录于： GRE VERBAL题库GRE分类
0

GRE VERBAL

GRE

相关试题推荐
随机试题
最新回复(0)