Comparative study on regulation reform of natural monopoly industry 并列题名:Comparative study on regulation reform of natural monopoly industry 并列正题名:Study of\ price regulation in China's natural monopoly industry Comparative study of China and US mutual fund industry Study of\ price regulation in China's natural monopoly industry Comparative study on regulatory systems of foreign aid Study on the price reform of the monopoly industries Comparative study on legal regulation to parallel imports Compilation of codes and regulations for decoration industry