Luận văn tốt nghiệp

12345674589854ABCDE55555555555555555555555555555555555555555555555F5B454B54A5 1'(5)"5*55 1234567869A46B2C46D2E426BF8646C6B64646A86A6E662 !6 1"6 #2$6 %A46 &6 %A46 '(6 )6 *"46 6 2+456 %A4(6 ,-.456 %/A6 0B6 "46 %1B6 24526 %3B6 4AD6 5E62266 , 46 %7426 1456 86 42AD6 D7426 2-9456 :;46 E6 D,!A46D21B6B64F46D,$456+D6D2.A65A4620B6D?@6D/A6D,-.4526 %A6BB6D2A62$E46D2E426-CB65?46D46D+D6452A@64E!(67869A46B2C46D2E426BF86 46D2 !6, 46%74261456862D65E4565A3@6F6D/$6AA46B2$6786D26D2?@6+65A6 BG45642-6DA@693B65E86H7469A6D2IB6D6E6D,!A46D21B(6>A426452A86 H646B2$6786D,$456+D6D2.A65A46D2IB6D?@6E6D2IB62A465?46D426JA46-CB64AD6 46 46 42=456 45-.A6 D2C4(6 4/46 4K6 86 )456 AL4(6 >2MB26 5(6 N456 2)6 E6 5A3@6 F6 786 D,$456+D6H6D,74265E865?46D46D+D6452A@266 !65?46D46D+D6452A@6BN678686-CB62$E46D2E42642-456:$6BE462/46B26 A46D21B6BG45642-65E6>A426452A86D2IB6D(64L465?46D46D+D6452A@64E!6O6>2"456 D,426 >2PA6 I6 D2A6 BD26 Q86 ,RD6 8$456 I6 D2"456 BF86 E6 B456 5B@6 6 >A46 BN6 6 D2 !6B"26 +C45,B-458B.4B5,/0545 A2 45745A!6 5A2 45745A!5 "5#$#$%&5 12345674589854ABCDE55555555555555555555555555555555555555555555555F5B454B54A5 1'(5")5*+5 12345674568659A6B5CD56EF5C757625BC5CA656B55A56256B6565625 E 566257!56B76B5B"62#51B$5%$5A&656'625C!625()6B5*+5,62562BA&5*35A6B5 B!C5625C'625CE-6259B,62562.62#5/0C5(E 625,6251!565205935CB$4C5C!625 6236B5A&65(+5CB752A75CBADC59D5(556C55,625C76B55$62585A&6#5/0C5,625 C76B5A&65956B:56B8C56254;$5%$59AD65CB(?5765C!365A&6###@#5 B,4A5-25.25/9C560C51!85/25345.24A5.4E5/CD4A5 /0C5 85 65 CBADC5 9D5 $625 85 A&65 B!5 28C5 9B5 A5 CE 625 63!5 625 %65 CB:75 C656BD6254;$5%$57$54A5 11 E05CA65445$62585A&6#5 11 FB8C5(E 625$62585A&6#5 11 GH6B5765C!365$62585A&6#5 11 GH6B59A6B5CD5$62585A&6#5 I!5J65B65BD5*859AD65CB2),82CK727CP7423F2DBE72&72 DCBED2 Q72 82 2 -742 DC>2 DJ7C2 D"72 ),82 CK72 2 C&72 DR2 M82 C'2 DC742 92 B'72 DCJC2C!2+B2)*7C2+,2EJ274CB'27-742DC-72-2DCD2762+P742CF@742C2CBE%2 742EF.742272E%9D2CBE%2742-742174$2H&72DCBED2C2B2DJ7C2%742)F!7423;2&72 7D224B223D2DL72DC9D2B'722B'727(742D=72)FB2D%742C22+5277428"2C'22 3;2-742%9D2C"22EJ274CB'27C526$234FB272312A42DC%5D2C2B2C72DJC2A42 +52CS28223F2DB72AC8B2DC,2CB'72C"572D9D21D23272DCBED2AE292B'7$2 2B44A552562579C568C59!857:5;45624A562122232"2)B=72DO2%74292B'72D%T2DC%12+5"2DJ7C2C9D2+526=%2 &%2 M82 CO2 D2B$2 NB2 7CP742 -742 D87C2 -742 1742 92 I%2 4B82 7CF2 W1B2 :F742 X%2W1B23472W57423C523F2VB2Y>2X%72Y72Z862Z'7C2NB'7GC2B2F!2 2232"2)B=72DO2.2>28"27C9D274C*82)52+B239D2>2D87C2C%74275"2 742AC-742DC2 9D2B'7$23CP742B2DF!742AB7C2DE27CF27C5262EJ274CB'2DL2C!2272E%9D28"22 ACC2 7G$$2 7=72 7D2 62 CD2 B'72 ,2 CC74$2 :%62 7CB=72 I%6972 I%6ED2 D7C2 7D2 62CD2,2CC742C"572D"572CO2DC%12+5"2ACC2C5742I%6ED2D7C$234FB2DCBED2AE2 5A2 45745A!5 #5$%$%&'5 5 "5 12345674589854ABCDE55555555555555555555555555555555555555555555555F5B454B54A5 CS2 2 +972 4!B2 [2 4B\2 CK2 72 7C62 "2 7C2 ),82 CK72 CF@742 72 92 B'72 DB2 F%2 7C9D$2 2U2HC9D2)F!742%74292B'712 22222HC9D2)F!742F!27C24B2I%82C8B2CS2DB=%2)52D&722+52B'72$2HCS2DB=%2 D&722"2@2I%872B9%2ACB72C'2DC742B'72I%24B82B9%2CS7C$234FB2DCBED2AE2C2B2 32"222C9D2)F!742B'722C"2ACC2C574$23#B2C%742B'722.2)FB2D%7422+52 C22CS2C"2C]28"21742I%87C24B2DD2D7C2>2 ^_$2`27CP742EJ274CB'2C72 EF.7426=%2&%2C9D2)F!742B'7228"27CF1262C"2C9D2@2ACJ2CJ7C2E2B'72DR2 CS2C"2C]28"21742B'722 a$^_$2 2222222222222U2:J7C2872D"572%74292B'712 22222222H-742D87C2%74292B'72C2B2F!2DCBED2AE2#2DJ7C2872D"5728"12872D"572 C"274FB2+572C57C274FB2R2O742DCBED23D2B'72872D"572C"2CJ7C22DCBED23D2B'72 M82D"572312-742D87C$234FB2DCBED2AE274"5B2+B'2DJ7C2D"72CJ7C2E2CK72\7422 DCBED23D2+52ACJ2O2B'72C72C2B2762+P7427CP742I%62D7C2+92872D"572CB%2b2-B2 DF742)627D2C'2DC742%74292B'72+52CJ7C27CP74272B2M82B2DF!742%742 92B'7$2Z272+2DCB2-742C2B2CED2>2CJ7C2E2CB2DBED2+52&62M27CP742CS2Q72b2 5742+52O2DC$22 U2:J7C2AB7C2DE2%74292B'7122 :"742I%2D87C2DCBED2AE2DCF742E%9D2CB'727CB9%2CF@7427$20cB2CF@742 729%2#2F%27CF!2B2B=7429%2#27CP742%2DC%Q724BP82AB7C2DE2+52A42DC%5D$2 01D2CF@742726D2DB972DCF742#2F%2B2)52C9D2)F!742+5212DB72562B'728"2C@7$2 :CF7427C24B2AB7C2DE2M821D2CF@74272%74292B'72I%82C8B2B2)F!7412+72 &%2DF2+52CJ2DL72DC9D2+572C57C$22 222222222222222222 34"5B23726=%2&%27=%2D=7274FB2DCBED2AE2C72)F%2[28"2C"2C'2DC74292B'72DC5D2 @724B272d2DCB2-742d2+572C57C2d2R2O742+52CD2DB7$2 5 5 5 5 5A2 45745A!5 #5$%$%&'5 5 &5 12345674589854ABCDE55555555555555555555555555555555555555555555555F5B454B54A5 "&5F*+*5*,-5.F5/-0515=F5>?5*@5A@12 3CB'2 +O2 D"742 )%572 +(72 DD2 74CB'2 )52 B2 BCC85 DC5 624A5 6