It will take big risks and cost to carry out business transformation when the coal resources are exhausted. 煤炭企业是资源依赖型企业,若在煤炭资源枯竭时才开始进行企业转型,代价大风险高。
All the analysis are assumed and restricted by the results of the above analysis, after which we take the next step in education cost data mining. Second, we carry out data mining. 这些分析实质上是种假定,在此分析结果约束下,进行了下一步教育成本数据挖掘。其次,进行数据挖掘。
When they stop searching they do not take into account that making themselves less available is a cost to all the other singles out there who may still be looking for a good match. 当他们停止寻找时,他们没有想到,降低自己的可获得性,对于其他所有仍在寻找良伴的单身者来说,其实是一种成本。
Web-based examination system can take advantage of the internet fully in practice. The established high efficient test data bank shared in common reduced running cost, breaking out of limitation of time and space. In addition, the test evaluation is more accurate and objective. 基于Web技术的网上考试系统,可以发挥网络的优势,建立高效、共享的题库,降低考试成本,使得网络考试不受时间和空间的限制,并且评测结果更为准确和客观。