Prep破解2--36

oliverwangchao

36.(31643-!-item-!-188;#058&006431)

Traveler:  Southern Airways has a far worse safety record than Air Dacentaria over the past few years, in terms of both the frequency of accidents and the severity of accidents.  Therefore, although Air Dacentaria is slightly more expensive, I will choose it over Southern Airways for my flight from Pederton to Dacenta, since it is worth paying extra to have a safer flight.

Which of the following, if true, casts the most serious doubt on the traveler's argument?

E---b

(A) Air Dacentaria's flight from Pederton to Dacenta is nonstop, whereas Southern Airways' flight touches down in Gorinda on the way.

(B) Most Southern Airways flights, but not its flight from Pederton to Dacenta, use Sarmouth airport, which because of its mountainous location is one of the world's most dangerous.

(C) For its flights from Pederton to Dacenta, Southern Airways uses a different model of airplane, with a smaller capacity, than the model Air Dacentaria uses for its flights on the same route.

(D) Only in the last few years has the cost of flying from Pederton to Dacenta been more expensive on Air Dacentaria than on Southern Airways.

(E) Although the frequency of accidents is greater on Southern Airways, on both airlines the proportion of flights that have accidents is very small.

B ：除了从P到D的航线，大多数的航线因为S airport多山的地形是世界上最危险的地方之一而选择S airport，----就说明P到D的航线是安全的。可是需要反驳它安全。

怎么理解？

billding

答案是B？
S之所以有这么低的安全记录，是因为它拥有其他很多不安全的线路，导致它记录不好（任何公司来运行都可能不好），那么，可以推测这条航线是安全的。

oliverwangchao

恩，有道理，谢谢