请教OG-23选项c,e

chenjm

OG 23题题目如下：
A cost-effiective solution to the problem of airport congestion  is to provide high-speed ground transportation between major cities lying 200 to 500 miles apart.The successful implementation of this plan would cost far less than expanding existing airports and would also reduce the number of airplanes clogging both airports and airways.
Which of the following ,if true,could proponents of the plan above most appropriately cits as a piece of evidence for the soundness of their plan?
A. An effective high-speed ground-transportation system would require major repairs to many
highways and mass-transit improvements.
B. One-half of all departing flights in the nation’s busiest airport head for a destination in a
major city 225 miles away.
C. The majority of travelers departing from rural airports are flying to destinations in cities
over 600 miles away.
D. Many new airports are being built in areas that are presently served by high-speed
ground-transportation systems.
E. A large proportion of air travelers are vacationers who are taking long-distance flights.

og上说：c,e say that there are many travelers for whom the proposed system would actually provided no alternative，

og的意思应该是说这两个选项是无关的，我觉得c,e应该是削弱才对啊

请牛牛指教

[此贴子已经被作者于2005-6-17 18:31:15编辑过]