单项选择题

A．Immigration.
B．Unemployment.
C．Falling mortality rate.
D．Rising birthrates.
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单项选择题
A．These cities grow relatively slowly.B．These cities’ growth is parallel to their industrial growth.C．These cities have grown much faster than industry.D．These cities are short of labor forc
A．These cities grow relatively slowly.
B．These cities’ growth is parallel to their industrial growth.
C．These cities have grown much faster than industry.
D．These cities are short of labor forc
单项选择题
A．a panicB．a body of the deadC．a special commissionD．a bomb
A．a panic
B．a body of the dead
C．a special commission
D．a bomb
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