单项选择题

The passage is mainly about ______. ( )

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

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单项选择题

According to the passage, why were doctors in the West sometimes unable to help their patients ( )

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.

单项选择题

Which of the following can be inferred from the passage about patent medicines ( )

A．They did not cost much.
B．They helped heal snake bites.
C．They did not work very well.
D．They had a strong taste.