You are managing an Oracle Database 11g ASM instance with a disk group dg01 having three disks. One of the disks in the disk group becomes unavailable because of power failure. You issued the following command to change the DISK_REPAIR_TIME attribute from 3.6 hours to 5 hours： ALTER DISKGROUP dg01 SET ATTRIBUTE ’disk_repair_time’ = ’5h’； To which disks in the disk group will the new value be applicable？（） all disks in the disk group。 all disks that are currently in OFFLINE mode。 all disks that are not currently in OFFLINE mode。 all disks in the disk group only if all of them are ONLINE。
单吸离心泵轴向推力产生的主要原因是叶轮缺乏（）。
Which three statements describe how the strict SQL mode provides added security?（） It rejects statements that try to insert out-of-range values。 It rejects invalid dates。 It limits the operations that the server can perform。 It rejects queries that produce out-of-range values。 It rejects dates with zero day or month value。
Enterprise Asset Management packages offer a wide range of capabilities. Which three areas of capability are covered by IBM Maximo Asset Management solutions?（） work orders。 human resources。 inventory control。 preventive maintenance。 facilities schedule management。 customer relationship management。
初运转时要进行水和柴油循环作业，以下哪种方式是正确的：（） 使容器内的液面上下变化，确认各液面检测开关的性能。 使各处理装置内的压力上下变化，确认各压力检测开关的性能。 使各容器内的温度变化，确认各温度检测开关的性能。
水电站大坝安全检查分为日常巡查、（）、定期检查和特种检查。
