( )is a method used in Critical Path Methodology for construcing a project achedule network diagram that uses hoxes or rectangles, referred to as nodes, to represe activities and connects them with arrows that show the logical relationships that exist between them.

A．PERT

B．AOA

C．WBS

D．PDM

下面哪一位不是文化起源地南方起源、生产说的代表人物：（）

A、李家治

B、程朱海

C、彭适凡

D、宋建