Given： What， inserted at line 39， will sort the keys in the props HashMap？（） Arrays.sort（s）；。 s = new TreeSet（s）；。 Collections.sort（s）；。 s = new SortedSet（s）；。
原油稳定的目的是什么？
AFCA是属于（） 宽带天线滤波耦合器。 窄带天线滤波耦合器。 两者皆可。
气液相平衡的条件是什么？
There is a problem with one of the disks used for your database and your system administrator informs you that the disk needs to be replaced. The replacement disk will not be available until tomorrow. There was only one data file on this disk； it belongs to the USERS tablespace in your PROD database. Your PROD database runs in ARCHIVELOG mode and nightly online backups are taken. The users need to be able to access the data in the USERS tablespace before the replacement disk arrives. You have already taken the USERS tablespace offline and have restored the data file from last night’s backup to a new disk. Which additional steps are required in order to make the USERS tablespace available？（） Only bring the tablespace back online.。 Only recover the tablespace and then bring the tablespace back online.。 Shut down the database， recover the data file and then start up the database.。 Issue the ALTER DATABASE RENAME FILE command， recover the tablespace， and then bring the tablespace online.。 Recover the tablespace， issue the ALTER DATABASE RENAME FILE command， and then bring the tablespace online.。
运用翻正反应来帮助脑瘫儿童从仰卧位转至俯卧位属于：（）
