答案:1.dacc dbdd cbba 2.ddcb dbca baac 3.ddad bcbb adbb 4.acdb dcbc dbca 5.cbab cdbc cbdd 6.bacc baad aabc 7.bdba cbca adbb 8.ccdd aacc badc 9.adac bdba bcca 10.dcab ddbd acba 11.ccad cbaa cadb 12.cda...