问一个取非题

allenhb

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.

The argument depends on which one of the following assumptions?

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.
  

答案：A

More than one or two airplanes were scheduled for the nine canceled flights. 这句话取非是什么？

谢谢

[此贴子已经被作者于2007-9-25 13:33:55编辑过]

Heaa

意思是：多于1或2架飞机是原本安排飞那九条取消的航班的。

allenhb

那取非后是 More than one or two airplanes were not scheduled for the nine canceled flights.

还是 Less than one or two airplanes were 
                        scheduled for the nine canceled flights. ？

zacharyzhang

如果这句话重点是数量，取非就是“No more than”或者“less than”

如果这句话重点是有安排，取非就是“not scheduled”

在这个题目中，根据前后关系，这句话表达的是数量问题。