The circular economy at social level requires us to build an energy saving, environmentally friendly society and its focus is on maximizing economic benefits. ( )

When externalities are present in a market, the well-being of market participants

A—Socialist Economy B—Capitalist Economy C—Collective Economy D—Planned Economy E—Controlled Economy F—Rural Economics G—Liberal Economy H—Mixed Economy I—Political Economy J—Protectionism K—Primary Sector L—Public Sector M—Economic Channels N—Economic Balance O—Economic Fluctuation P—Economic Depression Q—Economic Stability R—Economic Policy S—Economic Recovery T—Economic Trend U—Economic Situation ______自由经济 ______经济形势

A—Socialist Economy B—Capitalist Economy C—Collective Economy D—Planned Economy E—Controlled Economy F—Rural Economics G—Liberal Economy H—Mixed Economy I—Political Economy J—Protectionism K—Primary Sector L—Public Sector M—Economic Channels N—Economic Balance O—Economic Fluctuation P—Economic Depression Q—Economic Stability R—Economic Policy S—Economic Recovery T—Economic Trend U—Economic Situation ______经济平衡 ______经济复原苏

The self-interest of the participants in an economy is guided into promoting general economic self-interest by A: oilkonomos B: market power C: government intervention D: the invisible hand