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为了方便广大考生更好的复习，综合整理了备考资料：GMAT优秀作文精选，以供各位考生考试复习参考,希望对考生复习有所帮助。 The Director of Human Resources concludes that most employees at Company X feel that the improvement most needed at the company has been satisfactorily addressed. Two reasons are offered in support of this conclusion. First, a survey of employees showed that the issue respondents were most concerned about was employee-management communication. Second, the company has since instituted regular voluntary sessions for employees and management designed to improve communication. The directors argument is questionable for two reasons. To begin with, the validity of the survey is doubtful. Lacking information about the number of employees surveyed and the number of respondents, it is impossible to assess the validity of the results. For example, if 200 employees were surveyed but only two responded, the conclusion that most of the employees ranked employee-management communication as the most pressing issue would be highly suspect. Because the argument offers no evidence that would rule out interpretations such as this, the survey results are insufficient to support the authors conclusion. Furthermore, even if the survey accurately ranks certain issues according to level of employee concern, the highest-ranked issue in the survey might not be the issue about which employees are most concerned. Why? The improvement most needed from the point of view of the employees might not have appeared as one of the choices on the survey. For example, if the list of improvements presented on the survey was created by management rather than by the employees, then the issues of greatest concern to the employees might not be included on the list. Lacking information about how the survey was prepared, it is impossible to assess its reliability. Consequently, any conclusion based on it is highly questionable. | 
