创建一家属于自己的企业不是一件轻而易举的事情，必须具备一定的客观条件。例如：（）。 拥有专利技术。 拥有一定量的创业资金。 拥有工作经验和一定量的顾客群体。 拥有工商管理方面的教育背景。
排球击球手型：（），（）、（）。击球点：（）。击球部位：（）的两小臂桡骨内侧所构成的平面击球的位置。
You work as a database administrator for Supportcenter.cn. You added atablespaceto your database. Because of the changes to the physical structure of your database， you performed a backup of the control file to trace. After this， you lost only the control files and the instance aborted due to a hardware failure. How would you proceed to recover the database？（） Start the instance and open the database， instance recovery automatically recoverscontrol files。 Create a file based on the contents of the trace file and save it to the control file locations and start the database。 Re-create the database （The recovery of the control file is not possible because you have lost all the control files.）。 Start the instance， in the NOMOUNTstate，re-create the control file using the CREATE CONTROLFILE command stored in the trace file.。 Start the instance and MOUNT the database， then re-create the control file using the CREATE CONTROLFILE command stored in the trace file.。
举世闻名例说明激励理论在人事管理中的应用？
Data deduplication ratios depend on many factors. However， deduplication ratios are generallygreater for what type of data？（） encrypted data。 compressed data。 archive data。 multiplexed data stream。
用剖切平面把物体完全剖开后所得到的剖视图称为（）。
