A、<span style="FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-bidi-font-family: " times="" new="" roman";="" mso-font-kerning:="" 1.0pt;="" mso-ansi-language:="" en-us;="" mso-fareast-language:="" zh-cn;="" mso-bidi-language:="" ar-sa"=""><font face="宋体">实践合同</font></span>
B、<span style="FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-bidi-font-family: " times="" new="" roman";="" mso-font-kerning:="" 1.0pt;="" mso-ansi-language:="" en-us;="" mso-fareast-language:="" zh-cn;="" mso-bidi-language:="" ar-sa"=""><font face="宋体">主合同</font></span>
C、<span style="FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-bidi-font-family: " times="" new="" roman";="" mso-font-kerning:="" 1.0pt;="" mso-ansi-language:="" en-us;="" mso-fareast-language:="" zh-cn;="" mso-bidi-language:="" ar-sa"=""><font face="宋体">从合同</font></span>
D、<span style="FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-bidi-font-family: " times="" new="" roman";="" mso-font-kerning:="" 1.0pt;="" mso-ansi-language:="" en-us;="" mso-fareast-language:="" zh-cn;="" mso-bidi-language:="" ar-sa"=""><font face="宋体">无偿合同</font></span>