第3题: [单项选择]假定边际消费倾向β是0.8,则投资乘数k应为()。 A. 1.25 B. 2 C. 4 D. 5 参考答案:D 答案解析:本题考查投资乘数的计算。投资乘数k=1/(1-β)=1/(1-0.8)=5。
第4题: [单项选择]A. She should take some medicine and more water. B. She should take care of her rest and drink more water. C. She should give up her term paper for her health. D. She should receive more check-up. 参考答案:B 答案解析:[听力原文] What does the man suggest the woman to do