Discussion of greenhouse effects has usually focused on whether the Earth would warm and by how much, but climatologists have indicated all along that the most obvious effects, and those that would have the largest impact on people, would be extremes of temperature, precipitation, and storminess.
A. the most obvious effects, and those that would have the largest impact on people, would be extremes of temperature, precipitation, and storminess
B. the effects that are the most obvious ones, extremes of temperature, precipitation, and storminess, would be those impacting the most on people
C. those effects to have the largest impact on people, extremes of temperature, precipitation, and storminess, are what are the most obvious effects
D. extremes of temperature, precipitation, and storminess, the most obvious effects, that they would have the largest impact on people
E. extremes of temperature, precipitation, and storminess, which are the most obvious effects, are those to impact the most on people
看了前辈的讨论贴，有选A的有选E的，
我说一下我的看法，a中的would好像有问题，因为这道题说的是温室效应的影响，前面用would是因为地球变暖是以后的事情
科学家说气候的极端变化才是对人类影响最大的，这些自然灾害以前也发生过，是一个一般的事实
所以应该用一般现在时
A中还有一个毛病就是 the most obvious effects 和those that would have the largest impact on people 是同一个概念，应该是互相修饰的关系，所以还是用定语从句好于and，虽然这里有两个逗号，似乎是修饰语
我觉得应该选E
请大家讨论一下,谢谢. | 
