11月另一道变黑脸地方的jj题 GWD5-20 欢迎大家讨论

1. GWD-5-Q20: BF (黑体和选项已经不一样了)

Scientists typically do their most creative work before the age of forty.  It is commonly thought that this happens because

aging by itself brings about a loss of creative capacity.观点1 However, studies show that a disproportionately large

number of the scientists who produce highly creative work beyond the age of forty entered their field at an older

age than is usual  证据 Since by the age of forty the large majority of scientists have been working in their field for at least

fifteen years支持新结论的原因, the studies’ finding strongly suggests that the real reason why scientists over forty rarely

produce highly creative work is not that they have simply aged but rather that they generally have spent too long in a given

field.  结论

In the argument given, the two portions in boldface play which of the following roles?

1. The first is the position that the argument as a whole opposes; the second is an objection that has been raised against a position defended in the argument.

2. The first is a claim that has been advanced in support of a position that the argument opposes; the second is a finding that has been used in support of that position.

3. The first is an explanation that the argument challenges; the second is a finding that has been used in support of that explanation.

4. The first is an explanation that the argument challenges; the second is a finding on which that challenge is based.

5. The first is an explanation that the argument defends; the second is a finding that has been used to challenge that explanation.[D]

每句后面都是我对前一句作用的想法。还请NN指教！

没人理偶！

Please guide me!