单项选择题

A.

B.3xex+C;
C.D.174.24.96:6088/Latex/latex.action?latex=XGZyYWN7M157eH1lXnt4fX17XGxuM30rQw%3D%3D'
E.F.174.24.96:6088/Latex/latex.action?latex=XGZyYWN7M157eH1lXnt4fX17XGxuMysxfStD'
G.(1n3+1)3xex