消费函数曲线的斜率取决于()。
A. 平均消费倾向
B. 可支配收入
C. 边际消费倾向
D. 投资乘数
It can be inferred from the passage that most people in the United States in 1955 viewed the national economy with an air of______.
A. suspicion
B. disappointment
C. confusion
D. confidence
边际消费倾向与边际储蓄倾向之和等于()。
A. 0
B. 1
C. Y
D. -1
As it is used in the second paragraph of the passage, the word "spouse" means______.
A. a husband or wife
B. a waiter or waitress
C. a bridegroom or bride
D. a doctor or nurse