立柱导轨对工作台面（）检验时，在工作台面的中间位置放一平行直尺，将水平仪放在平尺上，并靠在立柱导轨的上端进行检查。

A、平面度误差

B、平行度误差

C、倾斜度误差

D、垂直度误差

Project success depends on a number of interrelated factors, including time, cost, and scope control. However, the success of any project depends primarily on ______ .

A．customer acceptance

B．customer satisfaction

C．customer compromise in defining its needs

D．exceeding customer requirements through gold-plating