还没有登录哦！
[Critical Reasoning]
试题详情
题目：
Biologist: Species with broad geographic ranges probably tend to endure longer than species with narrow ranges. The broader a species’ range, the more likely that species is to survive the extinction of populations in a few areas. Therefore, it is likely that the proportion of species with broad ranges tends to gradually increase with time.
The biologist’s conclusion follows logically from the above if which of the following is assumed?
选项:
A、There are now more species with broad geographic ranges than with narrow geographic ranges.
B、Most species can survive extinctions of populations in a few areas as long as the species’ geographic range is not very narrow.
C、If a population of a species in a particular area dies out, that species generally does not repopulate that area.
D、If a characteristic tends to help species endure longer, then the proportion of species with that characteristic tends to gradually increase with time.
E、Any characteristic that makes a species tend to endure longer will make it easier for that species to survive the extinction of populations in a few areas.
答案:
D
提问：
老师这道题不是问比例吗？那如果那些死了的又出现了繁殖就不会增加比例啊？所以选了c。d为什么是前提完全不懂啊。不用非得那个特性的种族增长啊，只要活下来不就行了吗
解答：
点赞0
阅读915
提问：
老师这道题不是问比例吗？那如果那些死了的又出现了繁殖就不会增加比例啊？所以选了c。d为什么是前提完全不懂啊。不用非得那个特性的种族增长啊，只要活下来不就行了吗
解答：
点赞0
阅读916
问个问题
注册太麻烦？点这里查看免费答疑吧！
博币不足
加"GMAT小百科"小智微信
直接送200
