【RedsquirrelsusedtobeacommonsightinBritishforestsandcountryside．Buttherearefewerthan140，000redsquirrelsleftnowandmostofthemareinScotland．However，greysquirrels（introducedfromNorthAmerica）arenowsocommon
<p>问题：【RedsquirrelsusedtobeacommonsightinBritishforestsandcountryside．Buttherearefewerthan140，000redsquirrelsleftnowandmostofthemareinScotland．However，greysquirrels（introducedfromNorthAmerica）arenowsocommonth】<p>答案：↓↓↓<p class="nav-title mt10" style="border-top:1px solid #ccc;padding-top: 10px;">冯萍慧的回答：<div class="content-b">网友采纳 69．Grey squirrels．细节理解题．题意：红松鼠和灰松鼠，哪一种是从北美洲介绍来的？根据第一段最后一句：However，grey squirrels （introduced from North America） are now so common that many p...
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