这个it指代什么the main advantage of membership in a mass community

这个it指代什么the main advantage of membership in a mass community 谢谢advantage of the mass media is that it gives people the in mass的用法the mass of 和 a mass of 有什么区别？ The series of predictable changes that occurs in a community the mass of 与 a mass of 有啥区别? _____________ the membership of a particular nation.填一个英语单词, 英语翻译The main structure of a ship is the hull.It's the main b i like standing safely in the middle of a swirling mass of s 英语翻译The mass media is a big part of our culture,yet it can a The mass of a grade A steel cylinder manufactured in a facto 英语翻译第一题：A:Excuse me.Where is the bank in your community?B:It 英语翻译a community reveals its true values in the way it treats