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While there are almost as many definitions of history as there are historians, modern practice most closely conforms to one that sees history as the attempt to recreate and explain the significant events of the past.

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【背景材料】北京某集团公司投资新建一工程项目，建设期为4年，建设期内各年度借款额详见表6-1。表6-1建设期内各年度借款额建设期年度第一年第二年第三年第四年借款额/万元400600500300 现有3种借款方案： 1．向甲银行借款，年利率为16%，每季度计息一次，最终银行再给予一定优惠，退还利息额50万元； 2．向乙银行借款，年利率为15.85%，每月计息一次 3．向丙银行借款，年利率为16.4%，每半年计息一次，最终银行再给予一定优惠，退还利息总额的5.5%【问题】1．若各年借款额在建设期各年年初发生，建设期内不支付利息，则计算3种借款方案所产生的建设期利息，并选出最优方案。 2．公司最终决定向丁银行借款，年利率为17%，每年计息一次，各年借款额在建设期各年年内均衡发生，建设期内逐年支付利息，请计算建设期利息。

阅读下面这篇短文，短文后列出了7个句子，请根据短文的内容对每个句子作出判断。如果该句提供的是正确信息，清选择A项；如果该句提供的是错误信息，请选择B项；如果该句的信息文章中没有提及，请选择C项。 Food and Cancer Medical Experts have suspected for many years that there is a strong link between what a person eats and cancer. They say a new study provides the first evidence that vitamins could reduce a person’s chance of developing cancer. A team of Chinese and American scientists did the study. They are from American National Cancer Institute and the Cancer Institute of the Chinese Academy of Medical sciences in Beijing. The Journal of the National Cancer Institute published the results of the study. About thirty thousand people between the ages of 40 to 69 took part in the study. They were form the northern central Chinese area of Linxian. Most of them took vitamins and minerals every day for five years. Linxian was chosen because the people there have an extremely high rate of cancer of stomach and esophagus. Researchers believe that fungus and molds in local foods may be partly responsible for the high cancer rate. Researchers divided those into eight groups. Seven of the groups received different mixtures of vitamins and minerals daily. The amounts of the vitamins and minerals were 1 to 2 times greater than what American health officials say is needed. The eighth group received sugar pills that had no effect. Those who seemed to fain the most received a mixture of a form of vitamin A called B-carotene, vitamin E and the mineral selenium. The vitamin and mineral are believed to prevent damage to cells caused by cancer-causing substances. Researchers reported a 13 percent drop in cancer rates in those who took B-carotene, vitamin E and selenium. They also found a 10 percent drop in the number of deaths caused by strokes from bursting blood vessels. Scientists warn that it is too soon to know if the effect, would be the same among people in other countries. They note that the people in Linxian eat foods that lack necessary vitamins and minerals. Chinese officials will continue to record the health records of the people in Linxian for many years. For now officials reportedly are considering using the results of the study. They want to find a way to improved the health of people in Linxian and other small towns in China. The results of the new study are unexpected.

A. Right
B. Wrong
C. Not Mentioned

There is no agreement whether methodology refers to the concepts peculiar to historical work in general or to the research techniques appropriate to the various branches of historical inquiry.

It applies equally to traditional historians who view history as only the external and internal criticism of sources, and to social science historians who equate their activity with specific techniques.