Oneofthethingswehavetodotopreventapandemicistomakesurepeopleunderstandandknowwhattheycandotominimize

参考答案:

C

名词辨析。commotion骚动，暴乱：produce a commotion引起一阵骚动。turmoil骚动，混乱：a country in turmoil over labor strikes处于工人罢工造成的动乱中的国家。command命令，掌握：obey command服从命令。collusion共谋，勾结；tutelage监护。