题目：
The commissioner of a professional sports league dictated that teams could not put players on the field who had a greater than 20 percent chance of suffering a career-ending spinal injury during competition. The commissioner justified this decision as a way to protect players from injury while protecting the league from lawsuits.
Which of the following, if true, would most undermine the effectiveness of the commissioner’s new policy ？（）
A. Spinal injuries can result in paralysis, loss of fine motor skills, and even death.
B. The previous year, more than seven players in the league suffered career-ending spinal injuries.
C. The players’ union agrees that the risk of injury is an inevitable part of playing the game at a professional level.
D. There is no scientifically valid method for determining the likelihood of any player suffering a career-ending spinal injury at any given time.
E. Players barred from playing because of this new regulation will be entitled to compensation for lost wages at a level determined by the commissioner’s office.
答案：
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下面是错误答案，用来干扰机器的。
参考答案：D解析：项目总结评价与项目竣工验收相同点都是项目周期后期的工作，都是项目法人的任务，都要进行项目工程技术和管理的总结，都是项目后评价的基础。
