og 10th 174. 没有搜到啊!

小姜

 

174.In 1987 sinusitis was the most common chronic medical condition in the United States, followed by arthritis and high blood pressure, in that order. The incidence rates for both arthritis and high blood pressure increase with age, but the incidence rate for sinusitis is the same for people of all ages. The average age of the United States population will increase between 1987 and 2000.

 

Which of the following conclusions can be most properly drawn about chronic medical conditions in the United States from the information given above?

 

(A) Sinusitis will be more common than either arthritis or high blood pressure in 2000.

(B) Arthritis will be the most common chronic medical condition in 2000.

(C) The average age of people suffering from sinusitis will increase between 1987 and 2000.

(D) Fewer people will suffer from sinusitis in 2000 than suffered from it in 1987.

(E) A majority of the population will suffer from at least one of the medical conditions mentioned above by the year 2000.

答案是C, 是不是说因为得S病得人和年龄没关系, 1987年有这个病得到2000年还有这个病,所以2000年时候这些人老了, 但是还得着这个病, 所以在2000年的时候,得这个病得人平均年龄增加了啊?

我觉得自己做得这个推理有漏洞, 因为,并不知道除了1987当年得S病得人以外,从1987--2000 13年间新得S病的人的年龄比例时候是否有变化,所以不能推出如上结论.

也就是说,如果在这个13年间,由于其他原因, 有更多的年龄更小的人得这个病,你岂不是以上得结论就被质疑了么??

请指教,解这个题得关键在哪里啊?

ad264

    

說說我的看法：

    

关键在于chronic: adj. continuing
for a long time. 长期的

    

由于sinusitis窦炎是the most common “chronic”
medical condition

    

即使得病的人数目没变，但是寿命越长，代表受病的折磨也就愈久了