1. Lists of hospitals have been compiled showing which hospital have patient death rates exceeding the national average . The date have been adjusted to allow differences in the ages of patient. 问 each of the following , if true m provideces a good logical ground for hospitals to object to interpreting rank on these lists as one of the indices of the quality of hospital care except: 有3项我不明白的是 A。 hospitals that keep patients longer are likely to have higher death rates than those that discharge patients earlier but do not record deaths of patients at home after discharge.
B paients who are beray old on admission to a hospital are less likely than younger patients to survive the same types of illness or surgical procedures.
C some hostitals serve a larger propertion of low income patients who tend to be more seriously ill when admitted to a hospital .
答案是B 但是为什么A不对呢? 好象C也对的样子
题2. An electric power company gained greater profits and provided electricity to consumers at lower rates per unit of electricity by building larger capacity more efficient within its area, to continue these financial trends, the company planned to replace an old plant by a plant with triple the capacity of its largest plant.
问The company's plan as described above assumed each of the following except: A,demand for electircity with the company's area of service would increase in future.
B expenses would not rise beyond the level that could be compensated for by efficiency or volume of operation, or both.
C the planned plant would be sufficiently reliable in sevice to contribute a net financial benefit to the company as a whole.
D safety measures to be instituted for the new plant would be the same as those for the plant it would replace.
E the tripiling of capacity would not result in insuperable technological obstacles to efficiency. 答案是 D 但是我觉得D也支持?因为如果safety measures to be instituted for the new plant would be the same as those for the plant it would replace. 那不是间接说new plant可行了?
1 找weaken.首先要知道作者的结论,还有作者的推理过程。 A 显然不是答案。A 提出一个理由。有些医院在某些情况下有可能比其他医院因为病人的不同产生更高的死亡率。所以不应该....... C 和 A一样。 B 说的对一些病人怎么.....(对所有医院都是有如此的情况)。对结论 lists......有作用吗?(也就是最起码应该指出各个医院不同,才能weaken or strength 结论) 注意方法。 2 找假设的方法。对选项取反后如果导致结论不成立。那么就是假设。 D取反。xx 与 xx 不同。但xx有可能更优。结论不成立吗?