Investigation and research on freshwater fish resources of Guangdong 并列题名：Investigation and research on freshwater fish resources of Guangdong Investigation and research on ancestral temples in Yunnan Investigation and research on main river fish resources in Guangxi of the Zhujiang River basin Investigation and research on the aspect of Chinese dialects in Guangxi Investigation and research on linear leisure space Investigation and research on rural construction in Hainan Investigation and research of repatriation of Japanese via Huludao Investigation and research on the Chinese antique maps 并列题名：Investigation and research on the aspect of Chinese dialects in Guangxi