2. 外语
  3. Animal migration is a seasonal or periodic movement of animals in response to changes in climate or food ______, or to ensure re

Animal migration is a seasonal or periodic movement of animals in response to changes in climate or food ______, or to ensure re

admin2011-04-26  60
问题 Animal migration is a seasonal or periodic movement of animals in response to changes in climate or food ______, or to ensure reproduction.
选项 A、alternation
B、availability
C、utilization
D、capacity
答案B
解析 (availability可得性，可用性，有效性)。句意为：动物的移栖是指动物为了适应气候或食物可得性的变化，或为了保证繁殖而进行的季节性或周期性的迁徙。A．alternation轮流，交替；C．utilization利用；D．capacity能力，才能。
转载请注明原文地址:https://kaotiyun.com/show/Bb6O777K
0

考博英语

相关试题推荐
随机试题
最新回复(0)