Was it _____ he was training in the field _____ he got hurt?

A．that, when

B．where, that

C．that, where

D．when, that

施工中发生事故时，（）应当采取紧急措施减少人员伤亡和事故损失，并按照国家有关规定及时向有关部门报告。

A.建设单位负责人

B.监理单位负责人

C.施工单位负责人

D.事故现场有关人员