—Do you still remember the first time you _______with a girl?

—Not exactly, but I remember it was a Sunday.

A．talked

B．had talked

C．have talked

D．were talking

进行高处作业前，应逐级进行安全技术教育及交底，落实所有（），未经落实时不得进行施工。

A．安全思想教育 

B．安全技术 

C．技术交底 

D．安全技术措施 

E．人身防护用品