标题: 狒狒逻辑60啊！！求助 [打印本页] 作者: angelazhao1010 时间: 2010-8-13 16:06 标题: 狒狒逻辑60啊！！求助 60. One of the more reliable methods of determining regional climatic conditions in prehistoric periods is to examine plant pollen trapped in glacial ice during ancient times. By comparing such pollen samples with spores take from modern vegetation, scientists can figure out approximately what the weather was like at the time of pollen deposition. Furthermore, by submitting the prehistoric samples to radiocarbon dating techniques, we can also determine when certain climatic conditions were prevalent in that portion of the globe.
Which one of the following may be inferred from the information in the passage?
A.The earth has undergone several glacial periods. B.Radiocarbon dating can be corroborated by glacial evidence. C.Similarities between prehistoric and contemporary climates do not exist. D.Pollen deposition is a fairly continuous process. E.Certain flora are reliably associated with particular climatic conditions. 答案是E 题目怎么解释啊 作者: 2008115061 时间: 2010-8-14 00:41
其实也不用想的很复杂，这道题几乎没用什么逻辑。 文章说pollen可以用来观察glacial time的气候，也就是说可以把pollen和气候联系起来。那很简单了，pollen必然是从flora里面出来的，也就是说这些话花能根据climate生产出不同的pollen, 是和clima 有联系的