单项选择题

A．Huge increase in the number of public relations companies.
B．Shrinking cultural differences.
C．New communications technologies.
D．PR efforts in other countries.
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单项选择题
A．Two.B．Three.C．Five.D．Seventeen.
A．Two.
B．Three.
C．Five.
D．Seventeen.
单项选择题
A．Supply usually outnumbers demand.B．Demand usually outnumbers supply.C．Supply is usually equal to demand.D．When supply exceeds demand, prices rise.
A．Supply usually outnumbers demand.
B．Demand usually outnumbers supply.
C．Supply is usually equal to demand.
D．When supply exceeds demand, prices rise.
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