What is the impact of World War II on the U.S. economy and workforce?
America's involvement in the war soon changed the rate of unemployment.
B. Women were being encouraged to work outside the home and even take over jobs that had been traditionally considered “men" s work.
C. The need for labor opened up new opportunities for women and African Americans and other minorities.
D. All above.
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What slogan is found in American Domestic efforts for rationing and recycling during World War II?
A. "Make It Do or Do Without"
B. "Do With Less, So They'll Have More"
C. "Food for Victory"
D. All above
The opportunity cost is the () as a result of a choice or decision. Factoring in opportunity costs allows project managers to weigh the benefits from alternative courses of action and not merely the current path or choice being considered in the cost-benefit analysis.
用户画像和用户故事是研究用户的两种工具,它们之间并没有什么关系。
A. 对
B. 错
精矿粉散运时,其最大的危险是()。
A. 由于其颗粒小,运输途中易扬尘
B. 由于其含水量大,装卸作业较困难
C. 当其含水量超过适运水分限量时容易流态化威胁船舶安全
D. A、B、C都是