Opportunity costs most often increase as you move down a production possibilities frontier because（）
A. resources are not completely adaptable to alternative uses
B. factors of production are limited and human wants are unlimited
C. efficiencies are generated by large-scale production
D. economic efficiency is only possible in the short run
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According to economists who emphasize the connection between productive contribution and economic reward, a more equal income distribution（）
A. is fundamental to economic growth
B. always helps the poor in the long run
C. creates inefficiency
D. generates greater productivity
Innumerable people from the past to the present have come to pay their respect to____and let their souls baptized and purified by his great thought of “being the first to raise concern and the last to
A. Fan Zhongyan
B. Tang Yin
C. Wu Zixu
D. Su Shi
Which of the following books do NOT belong to the Four Books（）
A. The Doctrine of the Mean
B. The Great Learning
C. The Book of Changes
D. The Doctrine of Morality
The Department of Justice brought suit against Microsoft in 1990s for（）
A. generating external costs
B. generating external benefits
C. creating excess market power for itself
D. providing public goods to the marketplace
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