20061(87)[](19622),,,;(19572),,;(19622),,,;(19572),,,,,,,,(,250011)[],,,[];;CAI,,,174,(118)(30)(36),,,,1998,,:,,,,,,,,,,,:1.,,:????,,,,:()()()64©1994-2007ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.()()2.,(),,,,3.,,,,,,,2001;2002();2004(),,,,,,,,,,,,,,,,,,,,1.12,,,,,,,,,,,,,1998,,,,,,,,,,,,,,,1999,,,,,;,,(20)74©1994-2007ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(8);(9);(10);(11),,,,2.,,,,,,,,,,;;,3.,,,,,,,(29)(47),,,,,CAI,,,,CAI,,,,,,CAI,CAI,,,,,,,,,CAI,,,,,,(:)022005-2006©1994-2007ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.