单项选择题

The purpose of this selection is to______.

A．describe the superiority of the developed nations
B．stress the need for scientific and educational development
C．prove that underdeveloped nations are backward
D．show the poverty and ignorance of Third World countries

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热门试题

单项选择题

What is the concept most people }rove on population growth

A．The population is always in constant geometric growth.
B．Rapid growth is followed by stable growth.
C．Decelerated growth is following by a decline.
D．No growth at all.

单项选择题

Which of the following is not true according to the passage

A．Human population expands at an exponential rate.
B．Population growth has shown fluctuation in demographic history.
C．Population growth can not be regarded as a social failure.
D．Increase in population is related to productivity.