2. 外语
  3. Medical personnel who served in heavy combat in a recent war—even those who escaped physical injury—now have lower incomes and h

Medical personnel who served in heavy combat in a recent war—even those who escaped physical injury—now have lower incomes and h

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问题 Medical personnel who served in heavy combat in a recent war—even those who escaped physical injury—now have lower incomes and higher divorce rates, and score lower on psy chological profiles measuring general happiness, than medical personnel who served in less stressful settings during that war. This evidence demonstrates that exposure to heavy-combat situations produces serious adverse effects, even among those who suffered no physical harm. Which of the following, if true, most strengthens the conclusion drawn above?
选项 A、The medical personnel who served in heavy combat had completed significantly less schooling prior to military service than had other medical personnel.
B、The medical personnel who served in heavy combat tended to be younger at the time of their entry into military service than were other medical personnel.
C、Parents of medical personnel who served in heavy combat show no significant difference in incomes, divorce rates, or general happiness from parents of other medical personnel.
D、Income levels, divorce rates, and levels of general happiness are the same for the medical personnel who served in heavy combat as they are for construction workers.
E、Medical personnel who served in heavy combat in an earlier war show no significant difference in incomes, divorce rates, or general happiness from other medical personnel who served in that war.
答案C
解析 本题推理是由一个事实而得出一个解释性结论，其隐含的假设是除了激烈的战争环境之外没有别的因素影响B。(C)指出这两类人的父母没有显著差异，实际上指出没有遗传因素影响B，所以(C)是一个假设，而假设可以作为一个支持，因此(C)正确；(A)、(B)、(D)与推理无关；(E)说明早期战争的两类人没有区别，从而对段落推理提出了质疑，起到了反对作用，所以(E)不可能是支持。
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