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发布时间：2006-06-23 11:57     点击：

(C) his conclusion is based on an assertion regarding unfairness, and unfairness is a very subjective concept

(D) he mistakenly assumes that Giselle wants a sales tax increase only on gasoline

(E) he makes the implausible assumption that the burden of increasing government revenues can be more evenly distributed among the people through other means besides increasing the gasoline sales tax

5. A government agency publishes ratings of airlines, ranking highest the airlines that have the smallest proportion of late flights. The agency’s purpose is to establish an objective measure of the relative efficiency of different airlines’ personnel in meeting published flight schedules.

Which one of the following, if true, would tend to invalidate use of the ratings for the agency’s purpose?

(A) Travelers sometimes have no choice of airlines for a given trip at a given time.

(B) Flights are often made late by bad weather conditions that affect some airlines more that others.

(C) The flight schedules of all airlines allow extra time for flights that go into or out of very busy airports.

(D) Airline personnel are aware that the government agency is monitoring all airline flights for lateness.

(E) Flights are defined as “late” only if they arrive more that fifteen minutes past their scheduled arrival time, and a record is made of how much alter than fifteen minutes they are.

6. Although this bottle is labeled “vinegar.” no fizzing occurred when some of the liquid in it was added to powder from this box labeled “baking soda.” But when an acidic liquid such as vinegar is added to baking soda the resulting mixture fizzes, so this bottle clearly has been mislabeled.

A flaw in the reasoning in the argument above is that this argument

(A) ignores the possibility that the bottle contained an acidic liquid other than vinegar

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