单项选择题

A small population may mean ______.

A．higher productivity, but a lower average income
B．lower productivity, but a higher average income
C．lower productivity and a lower average income
D．higher productivity and a higher average income

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热门试题

单项选择题

The government of the developed countries may prefer to a ______ population.

A．stable
B．slowly-increasing
C．fast-increasing
D．declining

单项选择题

It is not an easy job to carry out a general plan for birth control throughout the world because ______.

A．there are too many underdeveloped countries in the world
B．underdeveloped countries have low level of industrial development
C．different governments have different views on the question
D．even developed countries may have complex problems