请教大全1-5，7

5.     Psychological research indicates that college hockey and football players are more quickly moved to hostility and aggression than are college athletes in noncontact sports such as swimming. But the researchers’ conclusion—that contact sports encourage and teach participants to be hostile and aggressive—is untenable. The football and hockey players were probably more hostile and aggressive to start with than the swimmers.

Which of the following, if true, would most strengthen the conclusion drawn by the psychological researchers?

(A) The football and hockey players became more hostile and aggressive during the season and remained so during the off-season, whereas there was no increase in aggressiveness among the swimmers.

(B) The football and hockey players, but not the swimmers, were aware at the start of the experiment that they were being tested for aggressiveness.

(C) The same psychological research indicated that the football and hockey players had a great respect for cooperation and team play, whereas the swimmers were most concerned with excelling as individual competitors.

(D) The research studies were designed to include no college athletes who participated in both contact and noncontact sports.（A）

(E) Throughout the United States, more incidents of fan violence occur at baseball games than occur at hockey or football games.

why not B？

7.     Stronger patent laws are needed to protect inventions from being pirated. With that protection, manufacturers would be encouraged to invest in the development of new products and technologies. Such investment frequently results in an increase in a manufacturer’s productivity.

Which of the following conclusions can most properly be drawn from the information above?

(A) Stronger patent laws tend to benefit financial institutions as well as manufacturers.

(B) Increased productivity in manufacturing is likely to be accompanied by the creation of more manufacturing jobs.

(C) Manufacturers will decrease investment in the development of new products and technologies unless there are stronger patent laws.

(D) The weakness of current patent laws has been a cause of economic recession.（E）

(E) Stronger patent laws would stimulate improvements in productivity for many manufacturers.

Why not C？

MM，5题，这里要看清support的是什么结论，是psychological researchers的， 不是题目的最后一句。

那psychological researchers的结论就是contact sports encourage and teach participants to be hostile and aggressive，找support

B怎么support? P和F的players一开始就知道自己在被test,所以就表现的more aggressive?  是WEAKEN吧

7题：C：除非有stronger patent laws，不然M们将会减少在 in the development of new products and technologies 这方面的投资

没有这么说吧，只是说有这个LAW的话M们会受到鼓励去投资，没有说没LAW的话会decease啊。。可能remain呢？

愚见。。