问题
选择题
With the word "PM2.5"______ heard and seen in our life, people become more and more concerned about air pollution.
A．constantly
B．occasionally
C．consequently
D．contemporarily
答案
答案：A
题目分析：考查副词辨析。句意：随着“PM2.5”一词在生活中不断被听到或看到，人们变得越来越关注空气污染了。A不断地；B偶尔；C因此，结果；D同时期地。故选A。