21. The town of Greenfield recently instituted a substantial supplementary tax on all households, whereby each household is taxed in proportion to the volume of the trash that it puts out for trash collectors to pick up, as measured by the number of standard-sized garbage bags put out. In order to reduce the volume of the trash on which their tax bill is based, Greenfield households can deliver their recyclable trash to a conveniently located local commercial recycling center, where such trash is accepted free of charge. The supplementary tax provides some financial incentive to Greenfield households to do each of the following EXCEPT (A) sort out recyclable trash thoroughly from their other trash (B) dump nonrecyclable trash illegally at parks and roadsides (C) compress and nest items of nonrecyclable trash before putting them out for pickup (D) deliver recyclable materials to the recycling center instead of passing them on to neighbors who want to reuse them(D) (E) buy products without packaging or with recyclable rather than nonrecyclable packaging WHY B IS OK? ANSWER IS D. 25. Unless negotiations begin soon, the cease-fire will be violated by one of the two sides to the dispute. Negotiations will be held only if other countries have pressured the two sides to negotiate; an agreement will emerge only if other countries continue such pressure throughout the negotiations. But no negotiations will be held until international troops enforcing the cease-fire have demonstrated their ability to counter any aggression from either side, thus suppressing a major incentive for the two sides to resume fighting. If the statements above are true, and if negotiations between the two sides do begin soon, at the time those negotiations begin each of the following must also be true EXCEPT: (A) The cease-fire has not been violated by either of the two sides. (B) International troops enforcing the cease-fire have demonstrated that they can counter aggression from either of the two sides. (C) A major incentive for the two sides to resume hostilities has been suppressed. (D) Other countries have exerted pressure on the two sides to the dispute (E) The negotiations’ reaching an agreement depends in part on the actions of other countries. WHY E IS OK?.ANSWER IS A.
[此贴子已经被作者于2006-7-5 23:21:29编辑过] |