单项选择题
A．the contradiction between economists and the business community B．the present debate on economic growth C．the advantages and disadvantages of economic growth D．the importance of the debate on economic growth
A．is essential to the well-being of society as a whole B．can provide the solution to many of our social problems today C．can protect our environment from being polluted by industry D．can provide us with more natural resources for industrialization
A．They did not know how to treat the unfamiliar illnesses. B．They were more interested in establishing practices in the cities. C．They were more concerned with doing research than with treating patients. D．They were often overcome by diseases caught from their patients.