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
One reason Americans are more likely to travel this year is that.
A．airlines tickets are less expensive
B．more and more Americans have cars
C．the stock market is up
D．travel agents are offering special deals
单项选择题
A．They are interested in other kinds of reading.B．They are active in voluntary services.C．They tend to be low in education and in income.D．They live in isolated areas.
A．They are interested in other kinds of reading.
B．They are active in voluntary services.
C．They tend to be low in education and in income.
D．They live in isolated areas.
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