到哪去讨论GWD的答案 （附题）

nicboy

郁闷啊，刚做了GWD - TN - 24， 最全的GWD，里面没章的题目跟以前的 GWD 不一样， 找答案也很不容易， 特别是今天做了不 14套题， 错了一半，不知咋回事， 在哪儿可以找到GWD的答案讨论啊， 是不是只有以前的老GWD的讨论呢， 多谢， 同时附题一个，望大家帮忙回答。


9. GWD17-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

    
答案是 （B）， 但本人选赛（C）。 为什么是（B）啊