Evaluate the following block of code: What is the outcome of the above code?（） It produces an error because a fully qualified host name needs to be specified.。 It produces an error because the range of ports associated with the hosts has not been specified.。 It creates an access control list (ACL) with the user ACCT_MGR who gets the CONNECT and RESOLVE privileges.。 It creates an access control list (ACL) with the user ACCT_MGR who gets the CONNECT privilege but not the RESOLVE privilege.。
GRC制品一般均是薄壁和低水灰比的，对GRC挂板而言则具有较大的表面积。为此应采用有效的养护制度以达到下列要求：
项目监理机构在施工环境保护方面的职责之一是（）。 A.设置专门的施工环境保护监理机构 。 B.设置兼职的施工环境保护监理机构 。 C.配备专门的施工环境保护监理人员 。 D.配备兼职的施工环境保护监理人员。
The database Is configured in ARCHIVELOG mode. The database needs to be up 24 X 7. You want to perform user managed backup for the data files of the HR_DATA tablespace. To accomplish the task， you issued the following command： SQL> ALTER TABLESPACE hi_data BEGIN BACKUP； Which two statements are true in this scenario？（） No transaction on the tablespace is allowed but you can perform queries.。 The tablespace will automatically come out of backup mode when the file copy is complete.。 The checkpoint change number is frozen in headers of the data files until the file is removed from backup mode.。 The database writes the before image of an entire block to the redo stream before modifying. block tor the first time.。
克什米尔冲突之所以在国际社会引起广泛关注，是因为（）。①世界人民渴望和平．反对战争②发展经济是维护和平的有力保障③和平是人类生存与发展的基本条件④维护和平才能为经济发展创造良好的国际环境 ①②③。 ①③①。 ②③④。 ①②④。
You need to display the last names of those employees who have the letter "A" as the second character in their names. Which SQL statement displays the required results? （）
