【简答题】请收听以下音频,并补全句子内容。 After the of New China in 1949, the population grew rapidly due to the stable social situation, the rapid increase in production across all sectors of the national economy, as well as...
【单选题】The marginal social benefit received from pollution is less than its marginal social cost in the market for highly polished glass. In this situation:
A.
firms in the market produce the socially optimal level of pollution.
B.
society's well-being cannot be improved by changing the quantity of pollution.