新GRE考试阅读逻辑题练习(第五套)_GRE阅读

新GRE考试阅读逻辑题练习(第五套)

　　The companies that manufacture and sell aspirin and acetaminophen would not also manufacture and sell ibuprofen.

　　The introduction of ibuprofen would not increase total sales of nonprescription pain reliever.

　　8. New regulations in Mullentown require manufacturers there to develop five-year pollution-reduction plans. The regulations require that each manufacturer develop a detailed plan for reducing its released pollutants by at least 50 percent. Clearly, the regulations will not result in significant pollution reduction, how- ever, since the regulations do not force manufacturers to implement their plans.

　　Which of the following, if true, most weakens the argument?

　　Mullentown s manufacturing plants are not the only source of pollution there.

　　Detailed plans would reveal that measures to reduce released pollutants would also reduce manufacturers costs for materials, waste disposal, and legal services

　　Pollutants that manufacturing processes create but that are not released directly into the environment must nonetheless be collected and prepared for disposal

　　Any reductions in pollutants released from Mullentown s manufacturing plants would not be noticeable for at least five years.

　　Each manufacturer will be required to submit its plan to a committee appointed by Mullentown s officials.

　　9. To produce seeds, plants must first produce flowers.Two kinds of tarragon plants, Russian tarragon and French tarragon, look very similar except that Russian tarragon produces flowers and French tarragon does not. The leaves of Russian tarragon,however, lack the distinctive flavor that makes