单项选择题

A．To outline contrasting types of economic systems.B．To……

What is the main purpose of the passage

A．To outline contrasting types of economic systems.
B．To explain the science of economics.
C．To argue for the superiority of one economics systems.
D．To compare barter and money-exchange markets.

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单项选择题According to the passage, who has the greatest degree of control in an administered system

A．Individual.
B．Small businesses.
C．Major corporations.
D．The government.

单项选择题Which of the following is NOT mentioned by the author as a criterion for determining a person's place in a traditional society

A．Family background.
B．Age.
C．Religious belief.
D．Custom.

单项选择题In the second paragraph, the word real in real goods could best be replaced by which of the following

A．High quality.
B．Concrete.
C．Utter.
D．Authentic.

单项选择题According to the passage, a barter economy can lead to______.

A．rapid speed of transactions
B．misunderstandings
C．inflation
D．difficulties for the traders

单项选择题The Romans used to sell by auction______.

A．spoilt goods
B．old worn-out weapons
C．property taken from the enemy
D．spears