单项选择题
What will happen to residents if they don’t comply with the law（）
A. They will have to go to work in a factory. B. They will have to pay a fine, C. They will go to jail for ninety days. D. The government will take away their woodstove
单项选择题 21()
单项选择题 According to the passage, a barter economy can lead to （）
单项选择题 According to the passage, who has the greatest degree of control in an administered system（）
