RecentlyChongqingThr的精选

问题详情：任务型阅读阅读下文并回答问题。Recently,ChongqingThreeGorgesUniversityhasheldanactivitynamed“CellPhoneNinja”(手机忍者).Theywouldliketheirstudentsnottousecellphonesfor21days.Itisreallyachallen...