在三种元件中,()元件可以再嵌入其它元件。
A. 仅影片剪辑可以
B. 仅图形元件可以
C. 仅按钮元件可以
D. 上述三种都可以
设备维修的目的是排除临时故障,恢复设备()的活动
A. 正常生产
B. 加工性能
C. 技术性能
D. 工作指标
Which two statements are true regarding undo tablespaces()
A. The database can have more than one undo tablespace.
B. The UNDO_TABLESPACE parameter is valid in both automatic andmanualundo management.
C. Undo segments automatically grow and shrink as needed, acting as circular storage buffer for their assigned transactions.
D. An undotablespaceis automatically created if the UNDO_TABLESPACEparameter is not set and the UNDO_MANAGEMENT parameter is set to AUTO during the database instance start up.
导演()在《一个国家的诞生》(1915)、《党同伐异》(1916)中创制了情节的、线索的、故事的三个层面的平行剪辑。
A. 乔治梅里爱
B. 大卫格里菲斯
C. 路易卢米埃尔兄弟
D. 爱森斯坦