[求助]GWD28-17!急

midsouth

28-17: In the nation of Partoria,
large trucks currently account for 6 percent of miles driven on Partoria’s
roads but are involved in 12 percent of all highway fatalities. The very
largest trucks – those with three trailers – had less than a third of the accident
rate of single- and double-trailer trucks. Clearly, therefore, one way for
Partoria to reduce highway deaths would be to require shippers to increase
their use of triple-trailer trucks.

Which of the following, if true, most
seriously weakens the argument?

A: Partorian trucking companies have
so far used triple-trailer trucks on lightly traveled sections of major
highways only.

B: No matter what changes Partoria
makes in the regulation of trucking, it will have to keep some smaller roads
off-limits to all large trucks.

C: Very few fatal collisions involving
trucks in Partoria are collisions between two trucks.

D: In Partoria, the safety record of
the trucking industry as a whole has improved slightly over the past ten years.

E: In Partoria, the maximum legal
payload of a triple-trailer truck is less than three times the maximum legal
payload of the largest of the single-trailer trucks

请问这题的答案是否为E.有哪位热心人可以参谋一下. 谢谢!

wycg

以下是引用midsouth在2006-2-24 2:51:00的发言：

28-17: In the nation of Partoria,
large trucks currently account for 6 percent of miles driven on Partoria’s
roads but are involved in 12 percent of all highway fatalities. The very
largest trucks – those with three trailers – had less than a third of the accident
rate of single- and double-trailer trucks. Clearly, therefore, one way for
Partoria to reduce highway deaths would be to require shippers to increase
their use of triple-trailer trucks.

楼主见黄色部份, 是不是打错了?

E好象不对, 我选A.

[此贴子已经被作者于2006-2-24 9:46:59编辑过]

midsouth

wycg,谢谢你的回复
题目是照原题复制的. 我没有看清问的是weaken, 所以选了E.
如果是weaken, 我也认为是A.

xudbbingo

为什么选a呢？

davidli8888

The hidden assumption: under the similar situation, three trailers have less incidence rates than do other trucks. If the difference in incidence rates occurs because of the other factors, as stated in A, then the conclusion does not necessary hold.

davidli8888

The hidden assumption: under the similar situation, three trailers have less incidence rates than do other trucks. If the difference in incidence rates occurs because of the other factors, as stated in A, then the conclusion does not necessarily hold.

[此贴子已经被作者于2006-12-23 21:01:42编辑过]

ilovecushi

以下是引用midsouth在2006-2-24 2:51:00的发言：

28-17: In the nation of Partoria,
large trucks currently account for 6 percent of miles driven on Partoria’s
roads but are involved in 12 percent of all highway fatalities. The very
largest trucks – those with three trailers – had less than a third of the accident
rate of single- and double-trailer trucks. Clearly, therefore, one way for
Partoria to reduce highway deaths would be to require shippers to increase
their use of triple-trailer trucks.

Which of the following, if true, most
seriously weakens the argument?

A: Partorian trucking companies have
so far used triple-trailer trucks on lightly traveled sections of major
highways only.

B: No matter what changes Partoria
makes in the regulation of trucking, it will have to keep some smaller roads
off-limits to all large trucks.

C: Very few fatal collisions involving
trucks in Partoria are collisions between two trucks.

D: In Partoria, the safety record of
the trucking industry as a whole has improved slightly over the past ten years.

E: In Partoria, the maximum legal
payload of a triple-trailer truck is less than three times the maximum legal
payload of the largest of the single-trailer trucks

请问这题的答案是否为E.有哪位热心人可以参谋一下. 谢谢!

那A是在说什麽呀? on lightly? 是说很少使用triple trail truck 嘛?

有weaken吗?不懂~~

keke198537

definitely E.

阿土莎莎

up

东岸老男人

以下是引用midsouth在2006-2-24 2:51:00的发言：

28-17: In the nation of Partoria,
large trucks currently account for 6 percent of miles driven on Partoria’s
roads but are involved in 12 percent of all highway fatalities. The very
largest trucks – those with three trailers – had less than a third of the accident
rate of single- and double-trailer trucks. Clearly, therefore, one way for
Partoria to reduce highway deaths would be to require shippers to increase
their use of triple-trailer trucks.

Which of the following, if true, most
seriously weakens the argument?

明显是A，前面说三拖的比一拖和二拖的车祸少三分之一，所以建议多用三拖的。

而A说卡车公司到目前为止在主要的高速公路上少用三拖，三拖只是lightly traveled sections 。简单说，意思是，为什么三拖的车祸数据低啊？因为它很少开高速。如果开高速，说不定更多车祸，所以削弱了建议。

A: Partorian trucking companies have
so far used triple-trailer trucks on lightly traveled sections of major
highways only.

B: No matter what changes Partoria
makes in the regulation of trucking, it will have to keep some smaller roads
off-limits to all large trucks.

C: Very few fatal collisions involving
trucks in Partoria are collisions between two trucks.

D: In Partoria, the safety record of
the trucking industry as a whole has improved slightly over the past ten years.

E: In Partoria, the maximum legal
payload of a triple-trailer truck is less than three times the maximum legal
payload of the largest of the single-trailer trucks

请问这题的答案是否为E.有哪位热心人可以参谋一下. 谢谢!