单项选择题

A．Businessmen, managers and accountants.
B．Chemists, physicists and biologists.
C．Governors, doctors and teachers.
D．Engineers, public servants and news reporters.
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单项选择题
A．Small area, small population.B．Small area, large population.C．Large area, small population.D．Large area, large population.
A．Small area, small population.
B．Small area, large population.
C．Large area, small population.
D．Large area, large population.
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