单项选择题

What can be concluded when the current tide of knowledge revolution ebbs

A．Productivity will rise.
B．Productivity will receive no impact.
C．Population growth will slow down.
D．Population growth will become accelerate
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单项选择题
Which of the following is net 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.
单项选择题
The major concern expressed by underdeveloped nations regarding current economic conditions is that ______.
A．their preoccupation with profits overlooks the need for more humanistic values
B．their lawyers are ignorant of international trade laws
C．there is a great need for physicians
D．they have not been able to make the best use of their own resources
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