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标题: 再问：FeiFei-23 [打印本页]
作者: zcx    时间: 2004-4-11 23:33
标题: 再问：FeiFei-23

23. On a certain day, nine scheduled flights on Swift Airlines were canceled. Ordinarily, a cancellation is due to mechanical problems with the airplane scheduled for a certain flight. However, since it is unlikely that Swift would have the mechanical problems with more than one or two scheduled flights on a single day, some of the nine cancellations were probably due to something else.


(A) More than one or two airplanes were scheduled for the nine canceled flights.


(B) Swift Airlines has fewer mechanical problems than do other airlines of the same size.


(C) Each of the canceled flights would have been longer than the average flight on Swift Airlines.


(D) Swift Airlines had never before canceled more than one or two scheduled flights on a single day.


(E) All of the airplanes scheduled for the canceled flights are based at the same airport.


assumption事我最害怕的题目，此题请教解题思路。 我看不出a与题目的关系：题目讲的是飞机取消和机器故障的关系，但是a好像讲的是一两架飞机代替9架飞机飞？满头大汗


作者: sunlinlynn    时间: 2004-4-11 23:48

听mm的意思这题选a？

不懂either

作者: zcx    时间: 2004-4-12 09:08

怎么，大虾们都春游去了？

作者: weiyu    时间: 2004-4-12 09:53
mm怎么连问题都没有???
作者: weiyu    时间: 2004-4-12 09:56
以下是引用zcx在2004-4-11 23:33:00的发言：

23. On a certain day, nine scheduled flights on Swift Airlines were canceled. Ordinarily, a cancellation is due to mechanical problems with the airplane scheduled for a certain flight. However, since it is unlikely that Swift would have the mechanical problems with more than one or two scheduled flights on a single day, some of the nine cancellations were probably due to something else.


前面都是secheduled cancellation. 后面是9个cancellations. 所以这9个cancellation里至少得有2个以上的scheduled cancellations


(A) More than one or two airplanes were scheduled for the nine canceled flights.


(B) Swift Airlines has fewer mechanical problems than do other airlines of the same size.


(C) Each of the canceled flights would have been longer than the average flight on Swift Airlines.


(D) Swift Airlines had never before canceled more than one or two scheduled flights on a single day.


(E) All of the airplanes scheduled for the canceled flights are based at the same airport.


assumption事我最害怕的题目，此题请教解题思路。 我看不出a与题目的关系：题目讲的是飞机取消和机器故障的关系，但是a好像讲的是一两架飞机代替9架飞机飞？满头大汗


如果问假设，请注意黑体的差别

作者: zcx    时间: 2004-4-12 10:16

weiyu gg,实在不好意思，这题他本身确实是没有问题部分的，后来找了个补充：


23题干：The argument depends on which one of the following assumptions


被assumption搞得焦头烂额！

作者: freedownload    时间: 2004-4-12 12:45

weiyu兄：

我有一点理解你的意思，好象这里玩的是文字游戏，但我对第一句话不明白，On a certain day, nine scheduled flights on Swift Airlines were canceled，和选项a：More than one or two airplanes were scheduled for the nine canceled flights。既然已经说了9个scheduled flights canceled，当然more than one or two....，a不是废话吗？谢谢！

作者: zcx    时间: 2004-4-12 23:57
偶当时没敢选这个答案，是觉得它是原文的重述，假设好象一般不这么出现
作者: 小女公子    时间: 2005-3-16 13:30

同问。若没了第一句话On a certain day, nine scheduled flights on Swift Airlines were canceled，应该不会影响题目吧？？觉得这是废话…………

请教。

作者: dphxmg    时间: 2005-3-16 20:10

在这一题中，flight 和 airplane 是两个完全不同的概念。

因此，第一句话不是废话。假设，那九个被取消的flights完全由那1或2架由机械故障的飞机来承担的话，我们就得不出结论：之所以取消那九次飞行任务不完全是由于机械故障所致。

作者: sensornet    时间: 2005-3-17 06:56
从 it is unlikely that Swift would have the mechanicalproblems with more than one or two scheduled flights on a single day  以及 a cancellation is due tomechanical problems with the airplane scheduled for a certain flight， 能得出结论Swift每天最多有one or two airplanes死翘翘。

然后，引用dphxmg得出结论.

"假设，那九个被取消的flights完全由那1或2架由机械故障死翘翘的飞机来承担的话，我们就得不出结论：之所以取消那九次飞行任务不完全是由于机械故障所致。" --dphxmg
作者: fanofkaka    时间: 2013-4-16 11:58
A 反过来说：只有一架或者两架飞机被安排给了那九个航班。
按照原文讲述，S公司一辆架飞机同时出机械故障是有可能的。
那就得出了结论，nine cancellation 都是因为机械故障。
与原文意思相反。


作者: kevin2ff    时间: 2013-5-11 08:08
zcx 发表于 2004-4-11 23:33
23. On a certain day, nine scheduled flights on Swift Airlines were canceled. Ordinarily, a cancella ...

1. 9 scheduled flights cancelled
2. airplane scheduled for flight is canceled-->mechanical problem
3. no more thatn 1 or 2 schduled flight with mechanical problem

assumption: if only 1 or 2 airplanes scheduled for flight  due to mechanic problems were cancelled and led to the 9 flight cannellations (an airplane could have multi-flights), it cannot be the case that there are something else. But if over 2 airplanes airplanes scheduled for flights were cancelled, we are sure that something else happens.





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