FeiFei-109求救

FF109. Several studies have shown that hospitals are not all equally successful: patients are much more likely to die in some of them than in others. Since the hospitals in the studies had approximately equal per-patient funding, differences in the quality of care provided by hospital staff are probably responsible for the differences in mortality rates.

Which one of the following, if true, casts the most doubt on the conclusion drawn above?

A.         The staff in some of the hospital studies had earned more advanced degrees, on average, than the staff in the other hospitals.

B.         Patient populations vary substantially in average severity of illness from hospital to hospital.

C.         The average number of years that staff members stay on at a given job varies considerably from one hospital to another.

D.         Approximately the same surgical procedures were performed in each of the hospitals covered in the studies.

E.          Mortality rates for hospital patients do not vary considerably from one region of the country to another.

答案是﹙B﹚，但﹙D﹚那儿有问题呢?又题目中的” equally successful”指的是什么?

successful   adjective  

1 having the effect or result you intended

- The operation was successful.  

- a  highly successful   (=very successful) meeting  

  successful in (doing) something

- Were you successful in persuading him to change his mind?  

翻成成功 应该也说的过吧

D是support 不是weaken 手术过程一样(排除他因)

B每家医院重病的人口数有很大的差异---weaken

equally successful,

the author thinks since the hosiptals had equal per-patient funding, the quality of care provided to each patient should be equal. Therefore the mortality rates of hospitals should be equal too. But in reality, some of hopsitals had the higher rates, not equally successful.

To weaken the author's conclusion, we have to find another reasons for higher mortality rate.B provides an alternative reason: severity of illness.

the procedure of surgical has little connection to mortality rate.   

equally successful: 同样成功(有成就)的.

举个例子,

一个专门整形外科医院和一个专门治疗晚期癌症的医院,每个病人的funding一样.可是死亡率却不一样.

B. Patient populations vary substantially in average severity of illness from hospital to hospital.

    不同的医院的病人群体在平均疾病严重程度上不同.

D 只说了执行了同样的手术程序，没能解释为什么不同医院会有不同的死亡率。

。。。

二楼的：D是support 不是weaken 手术过程一样(排除他因)
这个哪里是support了啊，我怎么看不出来，我觉得要么是weaken要么是无关啊

四楼的：the quality of care provided to each patient should be equal.
题目明明说，既然funding per patient一样，quality of care有可能是导致死亡率差异的原因啊？

晕死了，到底在说什么呀？！谁能给confirm一下2楼和4楼的说法对吗？谢谢了！

B是对的没什么问题。再请教一下D，diff hospitals have same surgical procedure好像也可以说是直接反对differences in the quality of care吧？为什么D不行呢？

。。。