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A．One.B．Two.C．Three.D．None.How many significant demogra……

How many significant demographic changes ever occurred in the past one million years

A．One.
B．Two.
C．Three.
D．None.

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单项选择题What does the word domestic mean in Para. 2

A．Energetic.
B．Excited.
C．Alien.
D．Native.

单项选择题What is found to have close relationship with rapid increase in population

A．War between 2 countries.
B．Ways discovered to increase productivity.
C．Migration from a continent to another continent.
D．A new religion beginning to be accepted by people.

单项选择题In fresco painting to what is the paint applied

A．Canvas.
B．Paper.
C．Plaster.
D．Rock.

单项选择题What is the concept most people have on population growth

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

单项选择题What is the passage mainly about

A．The largest bookstore is going to accept foreign investment.
B．Xinhua bookstore is going to have a shareholding reform.
C．Xinhua bookstore must take actions according to the situation.
D．Xinhua bookstore has to keep its promise with WTO.