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gwd 11

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楼主
发表于 2004-8-24 06:36:00 | 只看该作者

gwd 11

Q31:


People with a certain eye disorder are virtually unable to see in moderately bright light, which seems to them unbearably intense, since the cells of their retinas are overwhelmed by moderately bright light.  These people do, however, show normal sensitivity to most components of dim light.  Their retinal cells are also not excessively sensitive to red components of moderately bright light.



The information above best supports which of the following hypotheses about people with the disorder described, if they have no other serious visual problems?




  • In all moderately dim light in which people without the disorder can read large print, people with the disorder cannot read such print.


  • In an otherwise darkened concert hall, these people will see a dimly illuminated red exit sign more clearly than small dim white lights that mark the aisles.


  • These people typically see more acutely at night and in dim light than do most people who do not have the disorder.


  • d)Eyeglasses that are transparent to red components of light but filter out other components of light help these people see in moderately bright light.


    why d)?????????????????????

    沙发
    发表于 2005-6-14 23:20:00 | 只看该作者

    谁能解释一些这道题呀???谢谢 了!!

    板凳
    发表于 2005-9-10 16:38:00 | 只看该作者

    同问这道题:c为什莫不对?原文的大致意思不是说:人们比较敏感于dim light;而不是bright light吗?

    地板
    发表于 2005-9-10 16:40:00 | 只看该作者
    我自己顶一下,盼nn解答,挺急,下下周考?
    5#
    发表于 2005-9-10 22:06:00 | 只看该作者

    These people do, however, show normal sensitivity to most components of dim light  我觉得从这句话可判断C不对。


    眼睛有某种问题的人在正常日光下看不到东西,是因为她们对moderately bright light太敏感,但是她们not excessively sensitive to red components of moderately bright light.所以如果眼镜可以过滤掉除red components外的xomponents,就可以帮助那些眼睛有问题的人。

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