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				| fjrigjwwe9r3edt_lecture:conts 
  ûҳ      ִ.  翡  Ƶûҳ ָ ϴ  2001 17.1, 2005 14.8,  2007 12.6  Ÿ. 
 ü,  ̼ ûҳ    ô κ   ū    ִ. Ư  Ȱ  Ȱ ûҳ ַ    ߴ  ġ    ִ.
 ڿ ̳ ߵ DZ .    ſ     η̳ źΰ       ֱ ̴.
 
 'ڿߵ Ǹ  Ʈ ̽         ڿ   õ    Ÿ    ִ.
 21     ִ    21    ϴ   麸  ڿ ߵ  30%,   70%    ϴ  Ÿ.
 
 ûҳ ñ ִ       뿡 Ŀٶ  ġ ŭ ûҳ  ֿ  ȭ ȸ ø   Ȯ ˷־ ûҳ ָ   ֵ ؾ Ѵ.   θ ֺ  ùٸ  μ  ̸ ûҳ ൿ  ؾ  ̴.
 
 ñ
 
 ƺ   ø ڳ൵  ȴ?
 
 ڳ  , ȭ ذϴ
 
 , ŭ ž   °?
 
 
 ǰ  ù - ̴(www.hidoc.co.kr)
 
 
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