标题: 大全-17-6,大全-17-16的思路 [打印本页]
作者: kenlily 时间: 2006-2-22 13:56 标题: 大全-17-6,大全-17-16的思路
in 1959, only 11 percent6. Between 1975 and 1985, nursing-home occupancy rates averaged 87 percent of capacity, while admission rates remained constant, at an average of 95 admissions per 1,000 beds per year. Between 1985 and 1988, however, occupancy rates rose to an average of 92 percent of capacity, while admission rates declined to 81 per 1,000 beds per year.
If the statements above are true, which of the following conclusions can be most properly drawn?
(A) The average length of time nursing-home residents stayed in nursing homes increased between 1985 and 1988.
(B) The proportion of older people living in nursing homes was greater in 1988 than in 1975.
(C) Nursing home admission rates tend to decline whenever occupancy rates rise.
(D) Nursing homes built prior to 1985 generally had fewer beds than did nursing homes built between 1985 and 1988.
(E) The more beds a nursing home has, the higher its occupancy rate is likely to be.
16. The proportion of women among students enrolled in higher education programs has increased over the past decades. This is partly shown by the fact that of the women between twenty and twenty-one were enrolled in college, while in 1981, 30 percent of the women between twenty and twenty-one were enrolled in college.
To evaluate the argument above, it would be most useful to compare 1959 and 1981 with regard to which of the following characteristics?
(A) The percentage of women between twenty and twenty-one who were not enrolled in college
(B) The percentage of women between twenty and twenty-five who graduated from college
(C) The percentage of women who, after attending college, entered highly paid professions
(D) The percentage of men between twenty and twenty-one who were enrolled in college
(E) The percentage of men who graduated from high school
我用了排除法得到两体的答案，请教如何把这里的数字或百分比分析清楚，比如用个公式啥的。
叩谢！
作者: linlin2008 时间: 2006-2-22 20:17
最好不用公式。从定量转为定性就可以了。逻辑不要求数字的准确性，只要知道增多或减少就可以了。
第6题（OG145）：进去的人减少了，可是空房也减少了；说明出来的比进去的还少，对不？以前进去的住的时间增加了呗。答案A。
第17题 (OG155)：入校20-21岁的女生比例增加，所以入校女生比例就增加；要使这个判断成立，入校20-21岁的男生比例就不能增加那么多。
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