溴化锂制冷机就是以蒸汽或低温热为热源，溴化锂溶液为（），水为（），来获取冷量的。 吸收剂吸收剂。 吸收剂制冷剂。 制冷剂吸收剂。 制冷剂制冷剂。
Consider the following command： Backup database plus archivelog delete input； How many backup sets would be created by this command if the following were true：（） Control-file a NN uto backups were enabled. NN The size of backup sets was not restricted. NN One channel was allocated. 1。 2。 3。 4。 5。
获得性血小板功能异常症，下列哪项检查结果是错误的（） 出血时间延长和血小板数减低。 血小板粘附和聚集功能减退。 血小板第3因子有效性减低。 血块收缩正常。
Compressed backups work with which of the following commands？（） copy as backup。 backup as copy。 backup。 copy。
A customer has raised a question about a recently installed LPAR. What command would the administrator run to obtain information about the processor entitlement?（） lscfg -vps。 prtconf -c。 lparstat -i。 lsdev -C -c processor。
An administrator determines that performance has degraded for a WebSphere Commerce database. Which of the following steps should be performed to correct this problem？（）
