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今天真不爽,又碰到几道,是不是答案又有问题,麻烦各位了!否则难以入睡

9 . In tests for pironoma, a serious disease, a false positive result indicates that people have pironoma when, in fact, they do not; a false negative result indicates that people do not have pironoma when, in fact, they do. To detect pironoma most accurately, physicians should use the laboratory test that has the lowest proportion of false positive results.

Which of the following, if true, gives the most support to the recommendation above?
(A) The accepted treatment for pironoma does not have damaging side effects.
(B) The laboratory test that has the lowest proportion of false positive results causes the same minor side effects as do the other laboratory tests used to detect pironoma.
(C) In treating pironoma patients, it is essential to begin treatment as early as possible, since even a week of delay can result in loss of life.
(D) The proportion of inconclusive test results is equal for all laboratory tests used to detect pironoma.
(E) All laboratory tests to detect pironoma have the same proportion of false negative results.

Companies O and P each have the same number of employees who work the same number of hours per week. According to records maintained by each company, the employees of Company O had fewer job-related accidents last year than did the employees of Company P. Therefore, employees of Company O are less likely to have job-related accidents than are employees of Company P.
10 . Which of the following, if true, would most strengthen the conclusion above?
(A) Company P manufactures products that are more hazardous for workers to produce than does Company O.
(B) Company P holds more safety inspections than does Company O.
(C) Company P maintains a more modern infirmary than does Company O.
(D) Company O paid more for new job-related medical claims than did Company P.
(E) Company P provides more types of health-care benefits than does Company O.
11 . Which of the following, if true, would most weaken the conclusion above?
(A) The employees of Company P lost more time at work due to job-related accidents than did the employees of Company O.
(B) Company P considered more types of accidents to be job-related than did Company O.
(C) The employees of Company P were sick more often than were the employees of Company O.
(D) Several employees of Company O each had more than one job-related accident.
(E) The majority of job-related accidents at Company O involved a single machine.

12  In comparison to the standard typewriter keyboard, the EFCO keyboard, which places the most-used keys nearest the typist's strongest fingers, allows faster typing and results in less fatigue, Therefore, replacement of standard keyboards with the EFCO keyboard will result in an immediate reduction of typing costs.

Which of the following, if true, would most weaken the conclusion drawn above?
(A) People who use both standard and EFCO keyboards report greater difficulty in the transition from the EFCO keyboard to the standard keyboard than in the transition from the standard keyboard to the EFCO keyboard.
(B) EFCO keyboards are no more expensive to manufacture than are standard keyboards and require less frequent repair than do standard keyboards.
(C) The number of businesses and government agencies that use EFCO keyboards is increasing each year.
(D) The more training and experience an employee has had with the standard keyboard, the more costly it is to train that employee to use the EFCO keyboard.
(E) Novice typists can learn to use the EFCO keyboard in about the same amount of time it takes them to learn to use the standard keyboard.

key: BEDB

我的是: EABD

不知各位能否帮我看看!万分感谢! 在线等!
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bessette:你这是那里的答案啊,已经两回了。
10、不能在A、E之间决定。因为A,说的是工作环境,E说的是人的素质。
    选项的关键在于提干的最后一句话理解。我现在还想不明白。
11、D。 因为提干说的每人(infer出来的),所以D 削弱。
Robert之家-----我的家园

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B 不对。D 这个比较也不能说明新的打字机便宜。感觉一个对的都没有。我好象记得原体的选项不是这样的。
Robert之家-----我的家园

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我是下载的"费允节的逻辑",就在topway下的,答案也是打包在内的,现在我做这套题都有点不踏实!

关于10,我觉得A比E更直接的strengthen the conclusion, because the fact that there are more health-care benefits in company P than in O doesn't mean more risks of job-related accidents. 否则B,C也可以考虑阿.

关于11,我觉得D的削弱是有漏洞的,因为even if several employees each have more than one job-related accidents, if only the overall accidents of company O is less than that of P, the conclusion is inferrable.

你怎么看12?

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关于12题
我的感觉和你一样,我是"矮子里面拔长子"的选了一个

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我做出来也是EABD
你的答案肯定不对,第一题我做到过,答案肯定是E

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Kilroy、bessette:
关于第11题:我选D 的原因是,大多数事故只是局限在几个人身上,怎能说所有的工人都容易发生事故呢?
当然,选项B 曾让我犹豫了好一会。
Robert之家-----我的家园

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11 Argument的结论是:employees of Company O are less likely to have job-related accidents than are employees of Company P.
里面没有说单个工人的情况,而是指一个总体而言。
而答案B是从总体上来否定COM P的数字有问题来weaken的,而且是从否定它本身提供的论据来否定,看起来更convincing
当然D按照你的想法走下去也是有道理的, 不知到真正答案是什么?

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十分感谢tongxun,Kilroy给我的答复!

关于11题,我比较同意Kilroy的看法,虽然D也weaken 但问题是most weaken,所以我觉得B好.

这道题我在以前的复习材料上也碰到过,答案是B,不过当时根本没考虑到tongxun对D的想法.

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