在使用UML建模时，若需要描述跨越多个用例的单个对象行为，使为（）是最为合适的。 协作图。 序列图。 活动图。 状态图。
ou need to configure fine-grained access control to external network resources from within your database. You create an access control list （ACL） using the DBMS_NETWORK_ACL_ADMIN package. Which statement is true regarding the ACL created？（） It is a list of remote database links stored in the XML file that are available to the users of the database.。 It is a list of users and network privileges stored in the XML file according to which a group of users can connect to one or more hosts.。 It is a list of users and network privileges stored in the data dictionary according to which a group of users can connect to one or more hosts.。 It is the list of the host names or the IP addresses stored in the data dictionary that can connect to your database through PL/SQL network utility packages such as UTL_TCP.。
偏瘫患者向健侧翻身时，健手（），健侧下肢（），健侧腿蹬床，同时（），完成翻身动作。
You work as a database administrator for Certkiller .com. In your organization， you have four databases， Certkiller DB01， Certkiller DB02， Certkiller DB03， and Certkiller DB04， which are located in Berlin， Frankfurt，Rammstein， and Munich respectively， and which were created using Database Configuration Assistant （DBCA）. You want to perform administrative tasks on these databases that include startup and shutdown， taking regular backups， and so on， fromFrankfurtusing Oracle tools. Which Oracle file would you enable to perform this task？（） Control file。 Password file。 Parameter file。 Online redo log file。 Listener controller file。 Server parameter file。
接触面积定义
屋面涂膜防水与基层粘结不牢固，有以下（）现象。
