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?
Unlike paint, the film gives a milky tone to certain colors.
At the end of its useful life, the film can be removed much more quickly than paint can.
The film can be applied only by technicians who have received special training.
The metal exteriors of airplanes have to be protected from high temperatures and caustic chemicals such as exhaust gases.
Even at speeds considerably higher than the normal speed of a passenger jet, the film remains securely attached.
我其实没太看懂这个问题...是同时啊,答案选项的意思是,如果最后摘除掉这层膜比较费劲的话,那总时间还是要很久,无法真正提高效率。
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maintenance除了一般的维护步骤外还要repaint,repaint就意味着要把原来的去掉,才可以repaint啊film也是同理,如果去除film要花很多时间,那么就不能有效的减少maintenance的时间,方案就不可行
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回到B,B我认为也是很勉强的,因为B说的是在产品寿命到期的时候取下来快,但是题干中的信息是paint都是在飞机需要maitainance的时候做的,很容易推理出maintainance的频率是更高的,不然航空公司就需要单独做paint而不maitain,因此基本上在做maintainance的时候产品寿命没有到期,B也就排不上用场。
所以这道题个人认为是不太严谨的,建议看个热闹就行
希望减少maintenance time
用film和原来用时一样长,但能多任务处理(不像原来不能)
增强
A、film的上色特性;无关
B、film用完之后弄下去比原来快;减少maintenance time;CORRECT
C、只有接受专业培训的员工才会用film;无关
D、飞机的金属外壳需要保护;无关,NMfilm
E、film性能好;与减少maintenance time无关
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原文结论的维修时间不光包括上漆时间,还包括下次维修的扯漆时间,肯定两个时间都短加强了维修时间段。
B选项,film这个方法扯漆时间短,加强了film这个方案用时短
(可以取非理解,如果film这个方法扯漆时间长,那么film这个方案用时不一定短,削弱原文方案)
Goal: 为了节省maintenance时间 . Plan: 航空公司采用一种新的film,这种film涂上去的时间和paint涂上去的时间一样,但是涂上去的同时可以做很多maintenance工作
choice b, 在使用寿命结束的时候,film拿下来的时间比paint拿下来的时间要快。 correct, 加强了节省时间
At the end of its useful life, the film can be removed much more quickly than paint can.用完了可以被快速除掉(节省时间,符合目标)
Even at speeds considerably higher than the normal speed of a passenger jet, the film remains securely attached.
这个film贴地再牢固(优点)和节省时间也没有关系啊!
这道题的goal是 reduce maintenance time,所以,只要和 reduce maintenance time 无关的,都不要选
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