施工总体部署包括以下工作（） 建立施工管理机构。 进行施工组织安排。 划分施工任务，确定施工关系及施工顺序。 编制施工准备计划。
You performed an incremental level 0 backup of a database: RMAN > BACKUP INCREMENTAL LEVEL 0 DATABASE; To enable block change tracking after the incremental level 0 backup, you issued this command: SQL > ALTER DATABASE ENABLE BLOCK CHANGE TRACKING USING FILE ‘ /mydir/rman_change_track.f’; To perform an incremental level 1 cumulative backup, you issued this command: RMAN> BACKUP INCREMENTAL LEVEL 1 CUMULATIVE DATABASE; Which three statements are true?（） Backup change tracking will sometimes reduce I/O performed during cumulative incremental backups.。 The change tracking file must always be backed up when you perform a full database backup.。 Block change tracking will always reduce I/O performed during cumulative incremental backups.。 More than one database block may be read by an incremental backup for a change made to a single block.。 The incremental level 1 backup that immediately follows the enabling of block change tracking will not read the change tracking file to discover changed blocks.。
YSP118型钢瓶，允许最大充装重量为（）kg。 118；。 120；。 49.5；。 50。
Given. Which two statements are true？（） Foo.beta（） is a valid invocation of beta（）.。 Foo.alpha（） is a valid invocation of alpha（）.。 Method beta（） can directly call method alpha（）.。 Method alpha（） can directly call method beta（）.。
对电子商务影响不甚明显的是（） 增值税。 关税。 所得税。 财产税。
Consider the following command to create a tablespace in your production database （which is using an Automatic Storage Management [ASM] instance to manage the database files）： CREATE TABLESPACE user_tbsp DATAFILE ’+dgroup3 （usder_temp） /user_files/user_tbsp’ SIZE 200M； What would be the result of this command？（）
