--Do you know Shanghai is one of_____ in he world? ---Yes, it’s bigger than_____ city in China.A. the biggest city, any B. the biggest cities, any C. the biggest cities, any other D. the bigger cities, any other 答案:C下列影响化学反应速率的因素中,是通过改变活化分子百分数来实现的是( )①改变气体物质的浓度 ②改变气体的压强③加入催化剂 ④改变气体的温度A.只有①② B.只有③④ C.只有①③④ D.①②③④