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标题: OG-145 [打印本页]

作者: freesimens    时间: 2005-7-18 06:54     标题: OG-145

145. 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.

我选的c,请nn帮忙解释一下,谢谢!


作者: himba    时间: 2005-7-18 07:04

I think the answer is A, rite?

There is a paradox in this problem, the higher admission rate, the

lower occupancy, while the lower adimssion rate, the higher

occupancy.Only A can explain why this could happen. Because people

stay in nursing house for a longer time than ever, that's why lower

admission rate can still cause the increasing number of people in the

nursing house gradually.


作者: liuliyun    时间: 2005-7-18 12:57

C的意思是说任何时候occupancy rate升高, admission rate就升. OG解释说题干里并没有说明1975-1985年发生的情况是正常的还是不正常的, 所以不能作出C这样的推理.




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