lsat-1-1-15

15.   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 taken 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.

the key: E，同意

B错在哪里？

文章推理:

1. pollen in cie + spores --> what the weather was like at the time of pollen deposition

2. by submitting the prehistoric samples to radiocarbon dating techniques --> certain climatic conditions were prevalent...

请问, 选项E是否只用了第一个推理, 其实从文章what the weather was like at the time of pollen deposition就可以得出正确选项是E.

我这样理解对吗? 请NN确认.

好像我的推理有误？

是A-->C, B-->C ?