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Which of the following is the most logical sequence of the four parts to complete the passage?

 

(A) In the case of microwave ovens, the commonly used wave frequency is roughly 2,450 megahertz.

(B) These waves boast another interesting, related property, too :  They`re not absorbed by most plastics,
    
     glass or ceramics. Metal reflects micorwaves, which is why metal pans don`t work well in a microwave oven
   
     It`s also why the devices have metal walls-for reflection.
 
(C) Waves in this frequency range have an interesting property : They`re absorbed by water, fats and sugars.
      
      Once absorbed, they`re converted directly into atomic motion-heat.

 

(D) Not surprisingly, a microwave oven uses micorwaves to heat  food. Microwaves are a type of wave that
      
      are sandwiched between radio waves and infrared radiation on the electromagnetic spectrum.

 

   1. A-B-D-C     2. C-B-A-D    3. C-D-A-B   4. D-B-A-C

 

순서 맞추기 너무 힘드네요  ^^:
첫번째로 어떤 문장을 써야 되는지부터 감이 안오네요 ^^;