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. Answer: A ____________________________________________________________________________ Questions 78-79 Despite improvements in treatment for asthma, the death rate from this disease has doubled during the past decade from its previous rate. Two possible explanations for this increase have been offered. First, the recording of deaths due to asthma has become more widespread and accurate in the past decade than it had been previously. Second, there has been an increase in urban pollution. However, since the rate of deaths due to asthma has increased dramatically even in cities with long-standing, comprehensive medical records and with little or no urban pollution, one must instead conclude that the cause of increased deaths is the use of bronchial inhalers by asthma sufferers to relieve their symptoms. 78. Each of the following, if true, provides support to the argument EXCEPT: (A) Urban populations have doubled in the past decade. (B) Records of asthma deaths are as accurate for the past twenty years as for the past ten years. (C) Evidence suggests that inhalers make the lungs more sensitive to irritation by airborne pollen. (D) By temporarily relieving the symptoms of asthma, inhalers encourage sufferers to avoid more beneficial measures. (E) Ten years ago bronchial inhalers were not available as an asthma treatment. Answer: A 79. Which one of the following is an assumption on which the argument depends? (A) Urban pollution has not doubled in the past decade. (B) Doctors and patients generally ignore the role of allergies in asthma. (C) Bronchial inhalers are unsafe, even when used according to the recommended instructions. (D) The use of bronchial inhalers aggravates other diseases that frequently occur among asthma sufferers and that often lead to fatal outcomes even when the asthma itself does not. (E) Increased urban pollution, improved recording of asthma deaths, and the used of asthma deaths, and the use of bronchial inhalers are the only possible explanations of the increased death rate due to asthma. Answer: E 请各位大大帮忙解惑，谢谢~ ^^ (请说明题目所问重点与为何选这个答案，thanks) --

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