Zhong guo gong chan dang de guo jia fa zhan zhan lue yan jiu / Zhong guo gong chan dang de guo jia fa zhan zhan lue yan jiu/ Zhong guo yang zhi ye ke chi xu fa zhan zhan lve yan jiu / Zhong guo zhong zhang qi neng yuan fa zhan zhan lve yan jiu = Zhong guo nong ye gai ge yu fa zhan qian yan yan jiu / Zhong guo gong lu jiao tong ke chi xu fa zhan mo shi yan jiu = Zhong san jiao zhi hui cheng shi qun de fa zhan zhan lve yan jiu / Zhong guo dian shi gong gong wen hua fu wu fa zhan chuang xin yan jiu / Yan an shi qi zhong guo gong chan dang fan fu chang lian jian she yan jiu / Sheng tai wen ming fa zhan zhan lue yan jiu /