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．roughly
D．firmly
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。四个选项的含义分别是：Constantly不断地；instantly立即；rarely很少地；directly直接地，选A。