（）是指幼儿园管理人员和有关教育行政人员遵循一定的教育方针和保教工作的客观规律，采用科学的工作方式和管理手段，将人、财、物等各因素合理组织起来，调动各方面的积极性，优质高效的实现国家所规定的培养目标和幼儿园工作所进行的实践活动。 幼儿园管理。 幼儿园行政管理。 幼儿园行政。 幼儿园治理。
You have not configured Oracle Managed Files (OMF) in your database. You do not want to scan the entire datafile every time an incremental backup is performed. You decide to enable the block change tracking feature.Which statement should you use to enable the block change tracking feature?（） ALTER DATABASE ENABLE BLOCK CHANGE TRACKING。 ALTER SYSTEM ENABLE BLOCK CHANGE TRACKING USING FILE
。 ALTER DATABASE ENABLE BLOCK CHANGE TRACKING USING FILE 。 ALTER SYSTEM ENABLE BLOCK CHANGE TRACKING。
试举例说明创业者应具备哪些素质要求？
第三次科技革命表明（）。 科技水平、劳动者素质，管理水平已成为经济发展的最关键因素。 农业、采矿业发展了，整个经济必然快速发展。 发展中国家经济发展的机遇越来越小。 世界各国经济独立发展的趋势日趋明显。
Which two statements about sequences are true? （） You use a NEXTVAL pseudo column to look at the next possible value that would be generated from a sequence, without actually retrieving the value.。 You use a CURRVAL pseudo column to look at the current value just generated from a sequence, without affecting the further values to be generated from the sequence.。 You use a NEXTVAL pseudo column to obtain the next possible value from a sequence by actually retrieving the value from the sequence.。 You use a CURRVAL pseudo column to generate a value from a sequence that would be used for a specified database column.。 If a sequence starting from a value 100 and incremented by 1 is used by more then one application, then all of these applications could have a value of 105 assigned to their column whose value is being generated by the sequence.。 You use REUSE clause when creating a sequence to restart the sequence once it generates the maximum value defined for the sequence.。
对于电梯监控来说，以下监控内容正确的是（）
