View the Exhibit to observe the roles assigned to the SLP_REP user. Which statement is true about the assignment of the SELECT_CATALOG_ROLE role to the SLP_REPuser() ["The user must enable the role explicitly.","The user can grant the role to other users.","The user cannot use the role until the DBA enables it explicitly.","The user can start using the role immediately without any changes."]
油浸式三相电力变压器的主要附件有油箱、储油柜、干燥器、防爆管、温度计、绝缘套管及()等。 ["分接头开关和液体继电器","气体继电器","分接头开关和气体继电器","分接头开关"]
投标人在招标文件要求提交投标文件的截止时间前,不可以补充、修改或者撤回已提交的投标文件。
污水处理中常见的后生动物都有哪些?举例说明它们的形态特征。
监理合同中的监理人是指受委托人委托,提供监理服务的法人或其合法继承人。
培养酵母菌的温度常选()°C。