题目内容

What is the main idea of the passage？

A. Geniuses are great people.
B. Geniuses are strange people.
C. Geniuses always lead a sad life.
D. To be too gifted is not good for peopl

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乘数与边际储蓄倾向同方向变动。 ()

A. 正确
B. 错误

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