新GRE考试阅读逻辑题练习(第二套)_GRE阅读

新GRE考试阅读逻辑题练习(第二套)

　　Closing existing nuclear power plants would require greatly increased reliance on coal-and oil-burning power plants.

　　The harm that has resulted from operation of existing coal-and oil-burning power plants has been significant.

　　The harm that a nuclear power plant is likely to cause as it continues to operate can be reliably predicted from the past history of nuclear power plants.

　　The only harm that has resulted from operation of existing coal-and oil-burning power plants has resulted from the pollution generated by these plants.

　　8 Drug manufacturer: Although our company requires that patients who use our new drug also pur-chase from us nonreusable kits for weekly blood testing, the expense of those kits is an entirely necessary one: weekly blood testing must be done to monitor the drug s potential side effects, which can be very dangerous.

　　Which of the following, if true, most seriously weak-ens the manufacturer s argument?

　　The expense of purchasing the blood-test kits has not prevented any patients from obtaining them or the drug.

　　Medical laboratories can perform the blood test-ing at a lower cost to patients or their insurers than the price the manufacturer charges for the kits.