Q39:
Which of the following most logically completes the passage?
On the whole, scientists do their most creative work before age forty, a tendency that has been taken to show that aging carries with it a loss of creative capacity. An alternative explanation is that by age forty most scientists have worked in their field for fifteen or more years and that by then they have exhausted the opportunity for creative work in that field. Supporting this explanation is the finding that ______.
1 the average age of recipients of scientific research grants is significantly greater than forty
2 a disproportionately large number of the scientists who produce highly creative work beyond age forty entered their field at an older age than is common
3 many scientists temper their own expectations of what they can achieve in their research work by their belief that their creativity will decline as they age
4 scientists who are older than forty tend to find more satisfaction in other activities, such as teaching and mentoring, than they do in pursuing their own research
5 there is a similar diminution of creativity with age in nonscientific fields, such as poetry and musical composition
I did not understand why choose B? not A ?
一个现象两个解释，问如何支持解释2。
解释2说之所以老年科学家不容易取得成果是因为他们干这行太久了，创意都耗尽了。B说那些老年还出成果的科学家其实刚进入他们研究领域不久，也就是说这些人还没有干这行太久。变相支持解释2。
Which of the following most logically completes the passage?
On the whole, scientists do their most creative work before age forty, a tendency that has been taken to show that aging carries with it a loss of creative capacity. An alternative explanation is that by age forty most scientists have worked in their field for fifteen or more years and that by then they have exhausted the opportunity for creative work in that field. Supporting this explanation is the finding that ______.
1 the average age of recipients of scientific research grants is significantly greater than forty
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