单项选择题

A．The isolated peoples mainly use coins and paper money as the medium of exchange.
B．The isolated peoples often engage in business activities with traders from outside.
C．The isolated peoples still extensively engage in barter.
D．Manufactured goods can be used as money.
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单项选择题
A．Because Americans are proud of their own countryB．Because flags go up everywhere with an abundant sense of patriotismC．Because the feeling of safety provided by two mighty oceans is now goneD．Because fear goes alongside everywhere with a new sense of patriotism
A．Because Americans are proud of their own country
B．Because flags go up everywhere with an abundant sense of patriotism
C．Because the feeling of safety provided by two mighty oceans is now gone
D．Because fear goes alongside everywhere with a new sense of patriotism
单项选择题
A．His steering wheel isn’t working properly.B．He will go on a holiday at once.C．He practices vandalism (破坏财物)D．His speedometer is out of order.
A．His steering wheel isn’t working properly.
B．He will go on a holiday at once.
C．He practices vandalism (破坏财物)
D．His speedometer is out of order.
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