冷压校直是将轴的凸面向上进行校直。
Which two statements are true about the WebLogic Server domains ？ （） Application Programmers need to refer to domains in their Oracle Web`logic Server programming Interface。 domains can be used to separate development， test， and production application， administration and operational responsibility， and organizational or business division 。 one can share a configured resource or subsystem between domains。 the concept of multiple domains is supported&e。
均衡充电电压宜取（）V/单体 2.23。 2.24。 2.35。 2.18。
国有企业事业单位职工参加基本养老保险前，视同缴费年限期间应当缴纳的基本养老保险费用由用人单位承担。
You started a long transaction. Before committing， you executed a query on one of the tables currently being modified. You received the following error： ORA-01555： snapshot too old How would you prevent such an error in the future？（） guarantee undo retention。 add one more redo log group。 size the redo log files appropriately。 size the UNDO tablespace appropriately。 size the SYSTEM tablespace appropriately。 configure an appropriate undo retention interval。 change automatic undo management to manual。
湿气含甲烷量为（）
