[求助][原创]大全－12－11

大全-12-11.       When a person is under intense psychological stress, his or her cardiovascular response is the same as it is during vigorous physical exercise. Psychological stress, then, must be beneficial for the heart as is vigorous physical exercise.

The argument above relies on which of the following assumptions?

(A) Exercise is an effective means of relieving psychological stress.

(B) The body’s short-term cardiovascular response to any activity indicates that activity’s long-term effect on the body.

(C) Cardiovascular response during an activity is an adequate measure of how beneficial the activity is for the heart.

 (D) Psychological stress can have a positive effect on the body.（C）

(E) Vigorous exercise is the most reliable method of maintaining a healthy heart.

答案是C，我选了E。不知道什么地方不对。

题目结论：心理紧张和运动一样对心脏有益。

E说运动对心脏有益。取非：运动对心脏没有好处－－－－对结论削弱了啊！

问题中是说运动对心脏有益处，当人们在压力下的时候，他的cardiovascular response和在vigorous physical exercise的时候是一样的，如果cardiovascular response是一个对心脏有好处的因素的话，才能推导出Psychological stress可以起到和vigorous physical exercise对心脏一样的效果。

C 中给出了我们所要的这个桥。
E 是无关项，运动对心脏再有好处也不能证明Psychological stress可以有同样的效果。除非这个两个东西share一个因素， 而这个因素是对心脏有好处的。

哦，明白了。E其实文章最后一句已经给出来了。而文章只是说心里紧张的反应和运动时一样，并没有说这个反应对身体有好处。C架了这个桥。多谢毛毛虫！