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73. There is no reason why the work of scientists has to be officially confirmed before being published. There is a system in place for the confirmation or disconfirmation of scientific findings, namely, the replication of results by other scientists. Poor scientific work on the part of any one scientists, which can include anything from careless reporting practices to fraud, is not harmful. It will be exposed and rendered harmless when other scientists conduct experiments and obtain disconfirmatory results.
Which one of the following, if true, would weaken the argument?
(A) Scientific experiments can go unchallenged for many years before they are replicated.
(B) Most scientists work in universities, where their work is submitted to peer review before publication.
(C) Most scientists are under pressure to make their work accessible to the scrutiny of replication.
(D) In scientific experiments, careless reporting is more common than fraud.
(E) Most scientists work as part of a team rather than alone.
做题时，我A不确定，B,c,d,e全排除
但是我不懂为什么A对的？
In opposing the 1970 Clean Air Act, the United States automobile industry argued that meeting the act’s standards for automobile emissions was neither economically feasible nor environmentally necessary. However, the catalytic converter, invented in 1967, enabled automakers to meet the 1970 standards efficiently. Currently, automakers are lobbying against the government’s attempt to pass legislation that would tighten restrictions on automobile emissions. The automakers contend that these new restrictions would be overly expensive and unnecessary to efforts to curb air pollution. Clearly, the automobile industry’s position should not be heeded.
85. Which one of the following most accurately expresses the method used to counter the automakers’ current position?
(A) The automakers’ premises are shown to lead to a contradiction.
(B) Facts are mentioned that show that the automakers are relying on false information.
(C) A flaw is pointed out in the reasoning used by the automakers to reach their conclusion.
(D) A comparison is drawn between the automakers’ current position and a position they held in the past.
(E) Evidence is provided that the new emissions legislation is both economically feasible and environmentally necessary.
为什么选D啊，我觉得DE都有道理
D表示以前你说不可以，后来你又可以了，那么现在你又来说不可以，那我有理由根据过去的事情推翻你
E我觉得这样说：你说实行起来太贵了，而且对环境没有必要，那我就证明给你看，这样的措施经济上时切实可行的，而且对环境是有必要的
那不就推翻你的结论了吗？
89. Rhizobium bacteria living in the roots of bean plants or other legumes produce fixed nitrogen, which is one of the essential plant nutrients and which for non-legume crops, such as wheat, normally must be supplied by applications of nitrogen-based fertilizer. So if biotechnology succeeds in producing wheat strains whose roots will play host to Rhizobium bacteria, the need for artificial fertilizers will be reduced.
The argument above makes which one of the following assumptions?
(A) Biotechnology should be directed toward producing plants that do not require artificial fertilize.
(B) Fixed nitrogen is currently the only soil nutrient that must be supplied by artificial fertilizer for growing wheat crops.
(C) There are no naturally occurring strains of wheat or other grasses that have Rhizobium bacteria living in their roots.
(D) Legumes are currently the only corps that produce their own supply of fixed nitrogen.
(E) Rhizobium bacteria living in the roots of wheat would produce fixed nitrogen.
这道题也是，我觉得C,E都对(答案：E）
文章说bacteria产生Nitrogen
假如Bioteclogy可以在Root能提供Host给Bacteria的Wheat的话，那么就可以减少肥料
那么减少肥料有两给条件
第一这个Wheat 要有Bacteria
第二此Bacteria要能提供 Fix Nitrogen
那么不就是选C,E，为什么答案只是E
以上三题，请大家指点迷津
小弟后天09：00就要上战场了，呜呜呜呜呜呜呜呜呜。。。。。
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发表于 2010-2-2 10:22:25
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