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2:22决定睡觉,今晚的逻辑错了一些很怪的题 比如145的,现在还想不通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. 答案是A 1975-1985 入住率87%,每千床发95个admission 每年 1985-1988 入住率92% 每千床发81个admission每年 有什么理由说1985-1988人们停留时间更长呢? 假设一共有2000张床,1975-1985 间总是空着260个床,1985-1988间总空着160个床 每年发出的admission和停留时间没有什么联系啊? |