Investigation and research on rural construction in Hainan 并列题名：Investigation and research on rural construction in Hainan Investigation and research on ancestral temples in Yunnan 并列题名：Investigation and research on ancestral temples in Yunnan Investigation and research on linear leisure space Investigation and research on the Chinese antique maps Investigation and research on Gaoping temple theatre Investigation and research on the new period agricultural insurance Investigation and research of repatriation of Japanese via Huludao Investigation and policy research on new immigrants in Macao