prep2——16

yahoochao

16.(26678-!-item-!-188;#058&003277)

When an airplane is taken out of service for maintenance, it is often repainted as well, and during the repainting no other maintenance work can be done on the plane.  In order to reduce maintenance time, airline officials are considering using a new nontoxic plastic film instead of paint.  The film takes just as long to apply as paint does, but many other maintenance tasks can be carried out at the same time.

Which of the following, if true, is further evidence that using the film will help the airline officials achieve their goal?

(A) Unlike paint, the film gives a milky tone to certain colors.

(B) At the end of its useful life, the film can be removed much more quickly than paint can.

(C) The film can be applied only by technicians who have received special training.

(D) The metal exteriors of airplanes have to be protected from high temperatures and caustic chemicals such as exhaust gases.

(E)Even at speeds considerably higher than the normal speed of a passenger jet, the film remains securely attached.
正确答案是B。我不明白为什么正确！希望nn解释~~谢谢O(∩_∩)O~

yahoochao

自己顶顶~~O(∩_∩)O~

cat19bear

不是牛牛 不过题目说的是 有一个新技术nontoxic plastic film  可以替代油漆，目的是加快飞机维护的时间，原来慢是因为 一旦刷油漆，什么时候就不能干了，而换nontoxic plastic film  的时间和油漆是一样的

所以要能够使用这个新技术，是要找 能够保证整个时间 不变或者缩短的选项

B - 去除的时候很方便，可以加快速度，正确

hughlv

目标是reduce maintenance time，而maintenance通常跟人换衣服一样包含两步：脱旧衣服，穿新衣服。如果B成立，说明总的maintenance时间可以进一步降低。所以可以起到加强作用。

yahoochao

但是B选项说At the end of its useful life……既然飞机要寿终正寝了   那还维护什么？如果不用维护了    那不就谈不上维护时间的为提了？？所以我觉得B不对啊~~~

hughlv

呵呵，这个its指代的是film而不是plane。这个是SC问题了。

yahoochao

呵呵，这个its指代的是film而不是plane。这个是SC问题了。

-- by 会员 hughlv (2010/4/15 0:46:13)

O(∩_∩)O~ 好囧啊~~~~~~~~~~~~谢谢  呵呵

sunluning0

我一开始也its当成飞机了，不过我排除下来选的B

yahoochao

我一开始也its当成飞机了，不过我排除下来选的B

-- by 会员 sunluning0 (2010/4/16 1:22:35)

O(∩_∩)O~我也一样