问题
选择题
With the word“PM2．5"_____ appearing in media reports，people pay greater attention to it and seek health tips for smoggy days．
A．constantly
B．instantly
C．rarely
D．directly
答案
答案：A
题目分析：句意：随着词汇““PM2．5"不断地出现在媒体的报告中，人们更加关注雾霾和寻求在。雾霾中保持健康的建议。Constantly不断地；instantly立即；rarely很少地；directly直接地，选A。