单项选择题What is the main purpose of the passage

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

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

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

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