题目内容

常见设计缺陷包括()

A. 铆钉,螺栓或其他连接处
B. 连续焊接处
C. 圆边
D. 上列所有缺陷
E. 上列所有缺陷都不包括

查看答案
更多问题

什么叫共模干扰,其抑制方法有哪些?

You work as a database administrator for Certkiller .com. Your database is configured for automatic undo management. UNDO_RETENTION is set to 3 hours. You want to flash back a table that was created last year. How far back can the flashback query go? ()

A. 3 hours
B. 6 months
C. until last year
D. until last commit
E. until the point when the undotablespacewas refreshed
F. until the database is shut down and the memory erased

用柴油清洗推铺机时,不得接近明火。

A. 正确
B. 错误

生产经营单位在新建、扩建、改建和引进项目时,必须保证该项目的安全卫生设施与主体工程同时设计,同时施工,同时()。

答案查题题库