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发布时间：2006-06-23 11:56     点击：

(D) equates political know-how with understanding the social implications of political policies

(E) assumes that when inexperienced politicians set policy they are guided by the advice of more experienced politicians

12. Impact craters caused by meteorites smashing into Earth have been found all around the globe, but they have been found in the greatest density in geologically stable regions. This relatively greater abundance of securely identified crater in geologically stable regions must be explained by the lower rates of destructive geophysical processes in those regions.

The conclusion is properly drawn if which one of the following is assumed?

(A) A meteorite that strikes exactly the same spot as an earlier meteorite will obliterate all traces of the earlier impact.

(B) Rates of destructive geophysical processes within any given region vary markedly throughout geological time.

(C) The rate at which the Earth is struck by meteorites has greatly increased in geologically recent times.

(D) Actual meteorite impacts have been scattered fairly evenly over the Earth's surface in the course of Earth's geological history.

(E) The Earth's geologically stable regions have been studied more intensively by geologists than have its less stable regions.

13. That the policy of nuclear deterrence has worked thus far is unquestionable. Since the end of the Second World War, the very fact that there were nuclear armaments in existence has kept major powers from using nuclear weapons, for fear of starting a worldwide nuclear exchange that would make the land of the power initiating it uninhabitable. The proof is that a third world war between superpowers has not happened.

Which one of the following, if true, indicates a flaw in the argument?

(A) Maintaining a high level of nuclear armaments represents a significant drain on a country's economy.

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