GMAT申友逻辑CR题库-【OG20-P578-663题】Boreal owls range over a much larger area than do other owls of similar size. Scientists have hypothesized that it-OG19新题-真题答案解析

题库解析 > Boldface 题型 > CR第1部分

本题由adminTK提供

CR第1部分

【OG20-P578-663题】Boreal owls range over a much larger area than do other owls of similar size. Scientists have hypothesized that it is scarcity of prey that leads the owls to range so widely. This hypothesis would be hard to confirm directly, since it is not possible to produce a sufficiently accurate count of the populations of small mammals inhabiting the forests where boreal owls live. Careful study of owl behavior has, however, shown that boreal owls do range over larger areas when they live in regions where food of the sort eaten by small mammals is comparatively sparse. This indicates that the scientists' hypothesis is not sheer speculation.

In the argument given, the two boldfaced portions play which of the following sheer speculation

A. The first presents an explanatory hypothesis, the second states the main conclusion of the argument.

B. The first presents an explanatory hypothesis;the second presents evidence tending to support this hypothesis.

C. The first presents an explanatory hypothesis, the second presents evidence to tending to support this hypothesis support an alternative explanation

D. The first describes a position that the argument opposes, the second presents evidence to undermine the support for the position being opposed

E. The first describes a position that the argument opposes; the second states the main conclusion of the argument.

登录申友雷哥GMAT，查看答案及解析

视频解析