151. Generally scientists enter their field with the goal of doing important new research and accept as their colleagues those with similar motivation. Therefore, when any scientist wins renown as an expounder of science to general audiences, most other scientists conclude that this popularizer should no longer be regarded as a true colleague.

The explanation offered above for the low esteem in which scientific popularizers are held by research scientists assumes that

(A) serious scientific research is not a solitary activity, but relies on active cooperation among a group of colleagues

(B) research scientists tend not to regard as colleagues those scientists whose renown they envy

(C) a scientist can become a famous popularizer without having completed any important research

(D) research scientists believe that those who are well known as popularizers of science are not motivated to do important new research

(E) no important new research can be accessible to or accurately assessed by those who are not themselves scientists

B为什么不对？它是加强结论吗？

取非不能使原结论不成立,原结论:similar motivation, accepted,--> renown as an expounder of science to general audiences, can not be accept as true colleague. 中间的GAP就使motivation和renown直接的关系.如果将B取非,research scientists tend  to regard as colleagues those scientists whose renown they envy,不能使原结论不成立,因为还有他们不妒忌的科学家可以成为他们的colleagues.而原结论是说对所有renown的都不能看作colleagues.

我觉得也不能构成加强,因为没有使结论成立的概率变大.

大家觉得呢

他们可能不envy人家呢？

没有证据表明有人成名了，别人就都envy他啊

假设题所针对的应该是前提核心或者核心的反面，不能是引申或者枝节吧。这题说goal推出colleague，reknown就不是colleague，肯定reknown跟goal相反，把goal of的内容取非就可以了，

envy除了无关，还把reknown的范围缩小了，不能把全部改成部分对吧？