结论提出主干嘛,it is not likely that crowding increases aggression as significantly as was seen in rats.意思很明显啦,crowding是关键词,那么肯定就是说uncrowded的地方也有这些aggression,才能strengthen. C感觉是比较的category错误.
If you think that E might be the right answer, determine whether it neutralizes or counters a reasonable objection. Thus, the converse of E should clearly weaken the arguement. Whether or not the coping behaviour is similar to gestures used to end an attack seems irrelevant to the strength of the argument. If you disagree, explain how E could be relevant.
The most evident assumption made stems from the broadening of the scope of the evidence (rhesus monkeys) to the conclusion (all monkeys)
_________________ Kevin Armstrong GMAT Instructor Gmatclasses Madrid
楼主,我一直琢磨你提出的这个问题,昨天还真心认为A对,但是今天我认为C对,因为it is not likely that,for any species of monkey, crowding increases aggression as significantly as was seen in rats. 这里面any species应该是说所有种类,由于前面是否定not,所以用any. 此题目的应该是考推理范围扩大后如何加强。除猕猴外所有猴子侵略性<猕猴侵略性<rats侵略性,所以加强结论。别再纠结了。上面有一哥们把英文解释也贴出来了,估计老外没咱们想这么多。