[求助]GWD的题目,请指点,谢谢

182．Advertisement: For sinus pain, three out of four hospitals give their patients Novex. So when you want the most effective painkiller for sinus pain, Novex is the one to choose.

Which of the following , if true, most seriously undermines the advertisement’s argument?

Answer: Unlike some competing brands of painkillers, Novex is available from pharmacies(药店) without a doctor’s prescription.

Doubt: 为什么不是这个选项呢？很多制造商以他们能够承受的最低价格将产品销售给医院。“Many drug manufactures increase sales of their products to hospitals by selling these products to the hospitals at the lowest price the manufacturers can afford.”

189. Biometric access-control systems—those using fingerprints, voiceprints,etc, to regulate admittance to restricted areas—work by degrees of similarity, not by identity. After all, even the same finger will rarely leave exactly identical prints. Such systems can be adjusted to minimize refusals of access to legitimate access-seekers. Such adjustments, however, increase the likelihood of admitting impostors.

Which of the following conclusions is most strongly supported by the information above?

Answer: If a biometric access-control system reliable prevents impostors from being admitted, it will sometimes turn away legitimate access-seekers.

Doubt: 我不明白“turn away”在这里是什么意思，是拒绝的意思？。文中说，这个程序能够通过调整，使得合格进入者被错误排出的情况最小化，但是，这种程序其实是增加了冒名顶替者进入的可能性。作者其实就是认为这种程序反而增加了危险程度。我这样理解题目对吗？总之，就是不明白为什么选这个答案。而不是以下这个“Biometric access-control systems are appropriate only in situations in which admittance of impostors is less of a problem than is mistaken refusal of access.”。看着看着，我选的这个错误答案好象是认为这个程序是能够起到作用的。晕了。。。。。。。。。。。。

小的希望能有高人指点..........

谁能教教偶呢??

第一题答案有问题。正确答案就是C，楼主选对了。这题是OG第11版第10题原题。

第二题也是OG上的原题，11版第51题。其实conclusion就是找一个跟原文意思最接近的选项。看到原文怎么说，说使降低系统访问限制会增加非法访问数。答案怎么说，说减少非法访问数呢，当然就会提高系统访问限制，那么合法进入的人也少了。仔细读一下，两个说的是同一个意思。如果不明白，可以想到数学逻辑说过的，原命题=逆否命题。

建议楼主在做GWD之前一定要确保答案是正确的，否则很容易由错误答案误导你的思路。