我的几道LSAT逻辑1

renaversace

The Gulches is an area of volcanic rock that is gashed by many channels that lead downhill from the site of a prehistoric glacier to a river. The channels clearly were cut by running water. It was once accepted as fact that the cutting occurred gradually, as the glacier melted. But one geologist theorized that the channels were cut in a short time by an enormous flood. The channels do show physical evidence of having been formed quickly, but the flood theory was originally rejected because scientists knew of no natural process that could melt so much ice so quickly. Paradoxically, today the scientific community accepts the flood theory even though scientists still do not know of a process that can melt so much ice so quickly.
16. Which one of the following is supported by the information in the passage?
(A) Only running water can cause deep channels in volcanic rock.
(B) The river did not exist before the channels were cut.
(C) Geologists cannot determine the amount of heat required to melt a glacier quickly.
(D) The physical effects of water on rock vary with the speed with which those effects are produced.
(E) Geologists are compelled to reject physical evidence when it leads to an unexplainable conclusion.
答案D的结论是怎样得出来的？

trifen

A语气太绝对，没有证据能表明only running water能cause deep channels。
B不能从文中推出。
C文中也未提到，并没有提到融化所需的热量。
D符合题意。因为原文中提到“The channels do show physical evidence of having been formed quickly”
E文中未提到。reject的理由并不是it leads to an unexplainable conclusion，而是because scientists knew of no natural process that could melt so much ice so quickly.

cranberry

文中可能被reject 的不是evidence而是theory

renaversace

楼上两位的回答太精辟了！
懂了，谢谢