#英语四级考试阅读学习笔记(8)2 搜索结果
Questions26to30arebasedonthefollowingpassage:Forsometimepastithasbeenwidelyacceptedthatbabies-andothercreatures-learntodothingsbecausecertainactsleadto"rewards";andthereisnoreasontodoubtthatthisistrue.Buti
