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Journalist: In physics journals, the number of articles reporting the results of experiments involving particle accelerators was lower last year than it had been in previous years. Several of the particle accelerators at major research institutions were out of service the year before last for repairs, so it is likely that the low number of articles was due to the decline in availability of particle accelerators.
Which of the following, if true, most seriously undermines the journalist's argument?
(A) Every article based on experiments with particle accelerators that was submitted for publication last year actually was published.
(B) The average time scientists must wait for access to a particle accelerator has declined over the last several years.
(D)  article accelerators can be used for more than one group of experiments in any given year
(E) Recent changes in the editorial policies of several phsics journals have decreased the likelihood that articles concerning particle- accelerator research will be accepted for publication
我理解的题目是，experiments文章少了是因为有关paticle accelerators（p a ）的文章少了，而p a的文章少了是因为有些个p a 设备在维修。
而D选项，说p a 可以多组公用，不说明p a 文章少了并不是因为有些p a在维修，而是另有他因，这样不就削弱结论了么？为什么D不对呢？
感谢各位指教！ |
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发表于 2011-2-8 01:38:32
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