请教一道新东方绿皮书上的159题，谢谢

159.Most employees in the computer industry move from company to company, changing jobs several times in their careers. However , Summit Computers is known throughout the industry for retaining its employees. Summit credits its success in retaining employees to its informal, nonhierarchical work environment.

Which of the following ,if true ,most strongly supports Summit’s explanation of its success in retaining employees?

A. Some people employed in the computer industry change jobs if they become bored with their current projects

B. A hierarchical work environment hinders the cooperative exchange of ideas that computer industry employees consider necessary for their work

C. Many of Summit’s senior employees had previously worked at only one other computer company

D. In a nonhierarchical work environment , people avoid behavior that might threaten group harmony and thus avoid discussing with their colleagues any dissatisfaction they might have with their jobs

E. The cost of living near Summit is relatively low compared to areas in which some other computer companies are located

informal, nonhierarchical work environment是大大的好事

D说：In a nonhierarchical work environment , people avoid behavior that might threaten group harmony and thus avoid discussing with their colleagues any dissatisfaction they might have with their jobs

避免交流工作的中的dissatisfaction ，这个有问题哦

工作中的争吵和有不同意见是很正常的啊，这样避免掉了，不符合美国人工作的理念

交流是必须的，无论是开心的还是争吵的

呵呵

很容易选D啊