大全-d-7

gerry3x

7.     The postal service is badly mismanaged. Forty years ago, first-class letter delivery cost only three cents. Since then, the price has increased nearly tenfold, with an actual decrease in the speed and reliability of service.

Each of the following statements, if true, would tend to weaken the argument above EXCEPT:

(A) The volume of mail handled by the postal service has increased dramatically over the last forty years.

(B) Unprecedented increases in the cost of fuel for trucks and planes have put severe upward pressures on postal delivery costs.

(C) Private delivery services usually charge more than does the postal service for comparable delivery charges.

(D) The average delivery time for a first-class letter four decades ago was actually slightly longer than it is today.（E）

(E) The average level of consumer prices overall has increased more than 300 percent over the last forty years.

为什么答案是e，而不是c，我认为题目”邮局管理不好"的结论是由“价格（成本）升高“推出来的，e就说明价格升高是通货膨胀，不代表成本升高，所以不代表管理不好，所以是weaken，所以不应该选

而c却说些无关的东西，所以应该选

请高人解释

我笨，我努力

up

我都开始怀疑M－A/B/C 里答案的正确性了

lawyer_1

原文：40年前，1类信邮费3CENT，现在邮费涨了10倍，速度和可靠性却降低。所以（结论），邮局管理不好。

A（weaken）是处理邮件量大导致速度和可靠性却降低，不是管理不好

B （WEAKEN）油价空前上涨导致邮递成本上涨，邮费上涨，不是管理不好

C（WEAKEN）私人收费还要高，涨10倍不算高

D （WEAKEN）40年前1类信件邮递速度还要低，现在速度不算低

E。（SUPPORT）物价才涨3倍，邮费却涨10倍，速度和可靠性却降低，应该是管理不好造成的

gerry3x

you are careful and you are right. thank u very much

cocoabean

弱弱的问: 请问楼主M-d 是那套题亚? 大全的?

多谢!

我笨，我努力

大全的，开始的D套，你看看就知道啦

egretxm

lawyer的解释确实很清楚，可是我还是对C有疑问。

Private delivery services usually charge more than does the postal service for comparable delivery charges. 私人收费更高就能说明postal service 收费不高么？

请看我举一个例子： 中国的电信业都很黑，收费太高，服务也不好。中国联通就是黑的一个，但是中国电信电信更黑：收费更高。

那么我们来看，这里中国电信比中国联通更黑能削弱这个说法“ 中国联通黑”么？

egretxm

再说

(E) The average level of consumer prices overall has increased more than 300 percent over the last forty years.

注意这里的more than 300 percent, 说的是消费水平涨了不止3倍，完全可以认为是一个削弱，我觉得。

egretxm

请指教!

Pudding

My two cents:

1.

私人收费更高就能说明postal service 收费不高么？

本題的削弱不是為了證明postal service收費高不高, 而是其收費高到底是否因為bad management造成的, 因此你舉的例子剛好說明中國聯通 &中國電信的黑是因為整個電信業黑, 而不是僅僅因為中國聯通管理不當...

2. 就算是more than 300 percent是不止三倍, 要"四捨五入"到十倍之多未免也離的太遠了吧....