An overwhelming richness of vegetation may have caused the level of oxygen, to rise above today’s ______ , with a corresponding

admin2011-01-11  59

问题 An overwhelming richness of vegetation may have caused the level of oxygen, to rise above today’s ______ , with a corresponding depletion of carbon dioxide.

选项 A、concentration
B、saturation
C、satiation
D、plenitude

答案A

解析 名词辨析
转载请注明原文地址:https://jikaoti.com/ti/ny2YFFFM
0

随机试题
最新回复(0)