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【单选题】
雷锋精神的核心是()。A.
为人民奉献
B.
忠于祖国
C.
为人民服务
D.
帮助他人
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皮皮学刷刷变学霸
举一反三
【单选题】Scarcity exists for those with
A.
lower incomes.
B.
average incomes.
C.
higher incomes.
D.
all of the above.
【单选题】The twin English passions for gardening and long muddy walks may seem puzzling to foreigners, yet they are easily explained in terms of a favourite economist's concept: scarcity. Most other nations ha...
A.
real estate development.
B.
gardening expansion.
C.
hostility to scarcity.
D.
economic recession.
【单选题】Scarcity is
A.
our inability to satisfy all our wants.
B.
a situation that exists during economic recessions but not during economic booms.
C.
eliminated by choices.
D.
an economic problem only for poor people.
【单选题】Scarcity:
A.
occurs only in centrally planned economies.
B.
will likely be eliminated by technological progress.
C.
exists only in poor nations.
D.
occurs if there are insufficient resources to provide for human wants.
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