变压器的瓦斯保护的启动是靠()。 电气动作。 机械动作。 油流和气流的运动。
在明治维新实行的改革措施中,对社会的进步和持续发展最为关键的是()。 废藩置县。 废除土地买卖的禁令。 实行征兵制。 发展近代教育。
遗传和变异的共同点有哪些?不同点有哪些?
You are performing flashback of the ORDERS table in the Scott’s schema because some important data is deleted in the table by mistake. The SCN number was 771513 at the time of deletion. You issued the following statement to perform Flashback Table: SQL> FLASHBACK TABLE ORDERS TO SCN 771513; What is the prerequisite to perform Flashback Table?() You must configure OMF in your database.。 You must enable block change tracking feature in your database.。 You must enable ROW MOVEMENT feature on the ORDERS table.。 You must use the Flashback Version Query before using the Flashback Table feature.。
A customer has an LPAR with 4 dedicated cores on a POWER7 server with SMT4 enabled. How many logical processors are presented to an application running on this LPAR?() 4。 8。 16。 32。
()是无形资产。