Afraid ______ face before his students, the teacher refused ______ that he was in the wrong.      [ ]

A. to lose; to admit  

B. of losing; admitting  

C. of losing; to admit  

D. to lose; admitting

中标人应当就分包项目向招标人负责，分包人就分包项目（）。

A.承担连带责任

B.承担附带责任

C.承担全部责任

D.向招标人负责