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题库 / Prep2007E2-CR-16
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.
手段
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
方案模式，可行性佳
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