摘要
用数例、图表详尽地展现了内部收益率在投资项目评估中的适应性、操作性、优劣性 .
The paper shows the flexibility,operationility and advantagility of internal rate of return on the estimate of investment program with the data and graphic in details.
关键词
内部收益率
投资评估
操作性
pure investment
mixed investment
conventional investment
unconvetional investment
oil pump problem
