—Tom, have you finished your homework?

—Yes, I ________ before you came back, mom.

A．finished

B．have finished

C．had finished

D．finish

评定报告中应详细记录工艺程序、焊接参数、检验结果、试验数据和评定结论，经()审核，经单位负责人批准，存入技术档案。

A.总工程师 

B.质量检验工程师 

C.理化检验工程师 

D.焊接责任工程师