单项选择题

A.174.24.96:6088/Latex/latex.action?latex=XGxpbV97eOKGknhfezB9XnstfX1mKHgpPVxsaW1fe3jihpJ4X3swfV57K319Zih4KT0z'
B.174.24.96:6088/Latex/latex.action?latex=XGxpbV97eOKGknhfezB9fWYoeCk9'
C.

D.2
E.3

F.0