【每日逻辑链练习贴】【逻辑1-11】

daisyの小夢想

 呵呵呵 第二题update了~~ 真的希望我们都能玩转CR哼哈  


逻辑汇总贴：http://forum.chasedream.com/GMAT_CR/thread-580862-1-1.html
阅读姊妹篇：http://forum.chasedream.com/GMAT_RC/thread-562296-1-1.html


1.
Compared to nonprofit hospitals of the same size, investor-owned hospitals require less public investment in the form of tax breaks, use fewer employees, and have higher occupancy levels. It can therefore be concluded that investor-owned hospitals are a better way of delivering medical care than are nonprofit hospitals.
Which one of the following, if true, most undermines the conclusion drawn above?


--FEIFEI98


key: Patients in nonprofit hospitals recover more quickly than do patients with comparable illnesses in investor-owned hospitals.


2. A society’sinfant mortality rate is an accepted indicator of that society’s general healthstatus. Even though in some localities in the United States
the rate is higherthan in many developing countries. In the United States , overall the rate hasbeen steadily declining. This declines does not necessarily indicate, however,that babies in the United  States are now, on the average, healthier atbirth than they were in the past.Which one of thefollowing reasons, if true, most strongly supports the claim made above aboutthe implications of the decline?
--FEIFEI125

key: The United States has been developingand his achieved extremely sophisticated technology for saving premature andlow-birth-weight babies, most of whom require extended hospital stays.
3.
Investigators concluded that human failure was not responsible for the fatal airplane crash last August, and since that time new and more stringent rules for identifying and reporting mechanical problems have been in effect. That accounts for the fact that reports of airplane mechanical problems have increased in frequency by 50 percent since last August.
Which one of the following is an assumption underlying the argument in the passage?


--FEIFEI61


key: Mechanical problems in airplanes have not increased by 50 percent since last August.


4.
A survey of alumni of the class of 1960 at Aurora University yielded puzzling results. When asked to indicate their academic rank, half of the respondents reported that they were in the top quarter of the graduating class in 1960.
Which one of the following most helps account for apparent contradiction above?


--FEIFEI105


key: A disproportionately large number of high ranking alumni responded to the survey.


5.
No.45 The following is part of a business plan created by the management of the Megamart grocery store:
“Our total sales have increased this year by 20 percent since we added a pharmacy section to our grocery store. Clearly, the customer’s main concern is the convenience afforded by one-stop shopping. The surest way to increase our profits over the next couple of years, therefore, is to add a clothing department along with an automotive supplies and repair shop. We should also plan to continue adding new departments and services, such as a restaurant and a garden shop, in subsequent years. Being the only store in the area that offers such a range of services will give us a competitive advantage over other local stores.”


--AA

daisyの小夢想

我糊涂了 噢噢，，补一个，^^大家不能偷懒！！

daisyの小夢想

Conclusion: The lower mortality rate does not indicate infancy are healthier
Premise: 缺失，找的就是这个~~~

---------------------------------------------------------华丽丽的分割线-----------------------------------------------------------------

我决定晚上去kid发的阅读里捣鼓以下，把我最近弄的OG SC大汇总贡献给小分队哈~
累死了，累死了。。继续去弄..... 赶紧弄完，全身心投入CR怀抱。。。

-- by 会员 superbat28 (2011/8/17 16:45:25)

        太厉害了！！必把它啃掉再考试！！！

daisyの小夢想

1. 34s
invester-owned hospitals can cost less, use fewer employees and have higher occupacy level than non-profit hospitals.
Conclusion:
Investor-owned hospitals can provided better medical care than non-profit ones.
Weaken: Non-profit hospitals have better doctors than invester-owned hospitals do.

2.1:13
BG: Morality rates for babies are good indicator of national health situation. The morality rate in the U.S. has been declining.
Conclusion:
But it doesn't indicate that the babies born now are healthier at birth than those born in the past.
Support: The morality rate is calculated when babies have been 1 or more years old.

3. 45s
Premise:
New rules for assessing mechine problems were on effect in August.
Thus, more problems were reported in August.
Conclusion:
The human failure is not contributed to the fatal air crash in August.
Assumption:
The mechine problem discovered has been solved before the crash.

4. 30s
Half of the alumni of A university in 1960 claim that they are among the 1/4 top graduates that year.
Explanation:
The number of alumni survey is less than 1/2 of the total number of graduates that year.