When it was his turn to deliver his speech，________，he walked towards the microphone.

A．nervously and embarrassingly

B．nervous and embarrassedly

C．nervously and embarrassing

D．nervous and embarrassed

根据《国家电网公司电网建设项档案管理办法》规定，施工试验、检测报告及报审、报验记录主要包括哪几项？