Dang dai zhong guo gong ren jie ji/ Dang dai zhong guo ren wen da xi Dang dai zhong guo ren wen da xi. zhong guo gong ren jie ji 中国工人阶级;zhong guo gong ren jie ji Dang dai zhong guo ke ji shi/ Dang dai zhong guo kong jun/ Dang dai zhong guo shi ye ren wu zhi/ Dang dai zhong guo si fa gong kai yan jiu/ Dang dai zhong guo ke ji shi /