第9题: [单项选择]The collection of data in case studies should include the following EXCEPT A. all the necessary data that could be collected. B. various types of documentation,questionnaires,interviews and observation. C. every piece of first hand data you could collect. 参考答案:C 答案解析:本题是个反向选择题,请注意题干中出现的“EXCEPT”,一般都会以大写字母出现,以引起考生的注意。在材料中,关于可以收集的用作案例分析的数据,只要做好笔记,应该不难回答。原文提到了“You must