题目内容

GCr15轴承钢,通常采用的最终热处理为()

A. 调质
B. 去应力退火
C. 淬火+低温回火
D. 淬火+中温回火

查看答案
更多问题

当混凝土泵停泵时间超限时,不应排空管道。()

The National Office of the IRS issues private letter rulings and technical advice memoranda and these pronouncements are binding on the IRS.()

A partner's basis is increased by the amount of deductible loss that flows through from the partnership.()

发生事故时,应果断地按照现场规程的规定处理事故。调度的命令,除对人身、设备有直接危害外,均应坚决执行。()

答案查题题库