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The importance of the ozone layer to terrestrial animals is that it entirely filters out some wavelengths of light but lets others through. Holes in the ozone layer and the dangers associated with these holes are well documented. However, one danger that has not been given sufficient attention is that these holes could lead to severe eye damage for animals of many species.

Which one of the following is most strongly supported by the statements above, if they are true?

AAll wavelengths of sunlight that can cause eye damage are filtered out by the ozone layer where it is intact
BFew species of animals live on a part of the earth's surface that is not threatened by holes in the ozone layer
CSome species of animals have eyes that will not suffer any damage when exposed to unfiltered sunlight
DA single wavelength of sunlight can cause severe damage to the eyes of most species of animals
ESome wavelengths of sunlight that cause eye damage are more likely to reach the earth's surface where there are holes in the ozone layer than where there are not

正确答案: E

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楼主

发表于 2004-9-20 05:07:00 | 显示全部楼层

这个题目对我来说太难, 偶就是GMAT-OG水平, 就不费力气找答案了.

. 等着答案出来偷艺

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