Which of the following does the author probably agree about the programs effect?
A. It has succeeded in boosting the nation"s economy.
B. It has benefited the American automakers in some ways.
C. It has lowered the fuel consumption in America.
D. It has attracted more overseas consumers into America market.
查看答案
机会成本是指当把一定的经济资源用于生产某种产品时放弃的另一些产品生产上最大的收益。()
最晚结束时间是指为了使项目在规定的时间内完成,某活动必须完成的最迟时间。()
需求识别始于需求、问题或机会的产生,结束于需求分析报告的发布。()