边境口岸应对区域经济合作策略探讨——以凭祥口岸为例 2. Fully Taking the Advantages of Pingxiang Port to Promote the Construction of Nanning-Lang Son-Hanoi-Haiphong-Quang Ninh Economic Corridor 发挥凭祥口岸优势,促进南宁—谅山—河内—海防—广宁经济走廊建设 3. two windows whence they could survey bey...