My boss was very resistant to my proposal at first but she finally_____and accepted my idea.

A．slowed down

B．put down

C．got down

D．broke down

墙下钢筋砼条形基础底板厚度主要根据（）条件确定；而柱下钢筋砼单独基础底板厚度则应根据（）条件确定。