原型化方法从用户界面的开发人员入手，首先形成（） ["需求不确定性的用户界面","用户界面需求分析说明书","系统界面原型","完善的用户界面"]
The database administrator of your company created a public synonym called HR for the HUMAN_RESOURCES table of the GENERAL schema, because many users frequently use this table. As a user of the database, you created a table called HR in your schema. What happens when you execute this query?（） [" You obtain the results retrieved from the public synonym HR created by the database administrator."," You obtain the results retrieved from the HR table that belongs to your schema."," You get an error message because you cannot retrieve from a table that has the same name as a public synonym."," You obtain the results retrieved from both the public synonym HR and the HR table that belongs to your schema, as a Cartesian product."," You obtain the results retrieved from both the public synonym HR and the HR table that belongs to your schema, as a FULL JOIN."]
作出人身安全保护令，应当具备下列条件（） ["有明确的被申请人","有具体的请求","有遭受家庭暴力或者面临家庭暴力现实危险的情形"]
You have executed this command to change the size of the database buffer cache： SQL> ALTER SYSTEM SET DB_CACHE_SIZE=2516582； System altered. To verify the change in size， you executed this command： SQL> SHOW PARAMETER DB_CACHE_SIZE NAME TYPE VALUE ------------------- ----------- ------------------ db_cache_size big integer 4194304 （4M） Why is the value set to 4194304 and not to 2516582（） ["because 4194304 is the granule size","because 4194304 is the standard block size","because 4194304 is the largest nonstandard block size defined in the database","because 4194304 is the total size of data already available in the database buffer cache"]
筒式封堵头采用（）的方式进行封堵。 ["机械膨胀","液压","气动","自然膨胀"]
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