A、<span style="FONT-FAMILY: 宋体; COLOR: black; 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">招标与投标</font></span>
B、<span style="FONT-FAMILY: 宋体; COLOR: black; 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">要约与承诺</font></span>
C、<span style="FONT-FAMILY: 宋体; COLOR: black; 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">讨价还价 </font></span>
D、<span style="FONT-FAMILY: 宋体; COLOR: black; 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">出价与承揽</font></span>