单项选择题


Questions 1 to 5 are based on the following conversation.

A． From 6 am to 6 pm.
B． From 9 am to 9 pm.
C． From 6 am to midnight.
D． All day.
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单项选择题
The reference to the Gordian knot (para. 5) suggests that the author thinks that
A． barter was inherently too slow
B． it was difficult to change the barter system to a monetary system
C． the economist Gordon deserves credit for introducing the monetary system
D． most people lack the skill to accurately determine the value of commodities
单项选择题
The explanation of the three functions of money
A． is common knowledge among informed people
B． is a section of a controversial economic theory
C． breaks new ground in economic thinking
D． is a comprehensive analysis of monetary policy
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