单项选择题

Which statement is TRUE about population increase

A．There might be an increase of 2.2 billion persons from now to the year 2000.
B．About 50,000 babies are born every, six hours at present.
C．Between 8000 B.C. and the present, the population increase is about 80,000,000 persons each year.
D．The population increased faster between 8000 B. C. and 1650 than between 1650 and the present.
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单项选择题
The author of the passage intends to _________.
A．warn people against the population explosion in the near future
B．compare the demographic growth pattern in the past with that after 1650
C．find out the cause for rapid increase in population in recent years
D．present us a clear and complete picture of the demographic growth
单项选择题
Which of the following demographic growth pattern is most suitable for the long thin powder fuse analogy
A．A virtually stable or slightly decreasing period and then a sudden explosion of population.
B．A slow growth for a long time and then a period of rapid, dramatic increase.
C．Too many people on earth and a few rapid increase in the number added each year.
D．A long period when death rates exceeds birthrates and then a short period with higher fertility and lower mortality.
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