继电保护及自动装置台账设备履历不包含下列哪项（）
A.修试记录
B.保护设备定值单
C.运行记录
D.定值单修改记录
参考答案：D
MoYan was awarded the Nobel Prize in 2012, made one of the Chinese people’s long-held dreams come true.
A．it
B．that
C．what
D．which
活塞冷却方式有哪几类？
