【题目】A survey indicates the _____ of men to women in the population has changed in recent years.
A. proportion B. proposal C. promotion D. Property
在线课程【答案】A
【解析】
试题分析：考查名词。句意：一项调查显示男女人口比例在近几年会有所改变。A. Proportion比例；B. proposal 提议；C. Promotion推广；D. Property财产；根据题意，故选A项。