首先把儿童游戏作为一项单独行为类别,提出游戏在儿童发展中的实际意义的人是() 亚里士多德。 柏拉图。 昆体良。 夸美纽斯。
Which two statements are true about the roles in the Oracle database?() A role can be granted to itself.。 Roles are owned by the SYS user.。 Roles can be granted to other roles.。 A role cannot be assigned external authentication.。 A role can contain both system and object privileges.。
新规程有关施工质量评定工作的组织要求中大型工程人数宜不少于()人。 5。 7。 10。 15。
You are maintaining the SALES database of TeleStar Corporation. The online redo log configuration of the database is as follows: One of the redo log members, redo3b, is lost due to disk failure. How will you recover the redo log member redo3b?() by performing an incomplete recovery from the last backup。 by performing an import operation。 by performing a complete database recovery。 by dropping the lost member and adding a new redo log member。
赵先生,45岁。患“冠心病”18年,住院期间突然神志丧失,呼吸不规则,即刻进行心肺复苏。判断心脏按压是否有效的标志是() 测血压。 呼喊患者看其是否清醒。 触及挠动脉搏动。 触及颈动脉搏动。 胸部起伏。
带有红,绿灯监视的跳闸,合闸回路,运行中继电保护装置动作跳闸重合不良后()。