理想与现实本来就是一对矛盾，二者是对立统一的关系。其中，统一性体现在哪里？

A. instant notification of a RAC node failure so applications never have to retry a transaction that was sent to a node that failed during the transaction
B. near-instant notification of the failure of a RAC node failure that minimizes the possibility connection to a failed node being provided to an application
C. application level notification of a failed RAC node such that an application can retry a transaction if required
D. faster failover for Multi Datasources
E. guaranteed transaction high availability when interacting with an Oracle RAC Database

A. 设计变更
B. 施工条件变更
C. 进度计划变更
D. 新增（减）工程项目内容
E. 施工人员变更

A. 该货币主要影响商品和劳务的销售价格，通常以该货币进行商品和劳务的计价和结算
B. 该货币主要影响商品和劳务所需人工、材料和其他费用，通常以该货币进行上述费用的计价和结算
C. 融资活动获得的资金
D. 影响当期汇兑差额金额的大小