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楼主好人，求确认考古。
第十四题（温室效应，削弱）
二氧化碳有温室效应，有个计划打算利用某些地区的甲烷资源，有人反对认为利用甲烷会释放二氧化碳加剧温室效应。问削弱。我选甲烷的温室效应更厉害。
By sdnas(690)
GWD6-Q32:
Proposal: Carbon dioxide and methane in the atmosphereblock the escape of heat into space. Soemission of these “greenhouse” gases contributes to global warming. In order to reduce global warming, emissionof greenhouse gases needs to be reduced. Therefore, the methane now emitted from openlandfills should instead be burned to produce electricity.
Objection: The burning of methane generates carbondioxide that is released into the atmosphere.
Which of the following,if true, most adequately counters the objection made to the proposal?
A. Every time a human being or other mammal exhales, there issome carbon dioxide released into the air.
B. The conversion of methane to electricity would occur at aconsiderable distance from the landfills.
C. The methane that is used to generate electricity wouldgenerally be used as a substitute for a fuel that does not produce anygreenhouse gases when burned.
D. Methane in the atmosphere is more effective in blocking theescape of heat from the Earth than is carbon dioxide.
E. The amount of methane emitted from the landfills could bereduced if the materials whose decomposition produces methane were notdiscarded, but recycled.
答案：D
第十七题（粮食，削弱）
某国农场粮食生产是人力密集型方式，打算加大低价粮食进口。有人认为这会导致农业人口收入下降，而城市人口生活成本下降，从而造成农村更穷城市更富。问削弱。我选的收入降低后，很多农村人口会进城。
By sdnas(690)
T-9-Q2
Kernland imposes a high tariff onthe export of unprocessed cashew nuts in order to ensure that the nuts are soldto domestic processing plants. If the tariff were lifted and unprocessed cashewwere sold at world market prices, more farmers could profit by growing cashews.However, since all the processing plants are in urban areas, removing thetariff would seriously hamper the government‘s effort to reduce urbanunemployment over the next five years.
Which of the following, if true,most seriously weakens the argument?
A. Some of the by-products of processing cashews are used formanufacturing plants and plastics
B. Other countries in which cashews are processed subsidizetheir processing plants
C. More people in kernland are engaged in farming cashews thanin processing them
D. Buying unprocessed cashews at lower than world marketprices enables cashew processors in kernland to sell processed nuts atcompetitive prices
E. A lack of profitable crops is driving an increasing numberof small farmers in kernland off their land and into the cities |
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发表于 2012-10-12 10:16:17
