Click the Exhibit button and examine the data from the EMP table. The COMMISSION column shows the monthly commission earned by the employee. Which two tasks would require subqueries or joins in order to be performed in a single step? （） ["listing the employees who earn the same amount of commission as employee 3","finding the total commission earned by the employees in department 10","finding the number of employees who earn a commission that is higher than the average commission of the company","listing the departments whose average commission is more than 600","listing the employees who do not earn commission and who are working for department 20 in descending order of the employee ID","listing the employees whose annual commission is more than 6000"]
宏观投资管理的主体是（）。 ["国务院和省级政府","国家","行业部门","国家发展与改革委员会"]
我国安全标志分类中不包括（） ["禁止标志","警告标志","指令标志","提示标志"]
Where can you obtain information about full database backup set created using RMAN， if the control file was used as the repository？（） ["V$BACKUPSET","RC_DATABASE","V$BACKUP_SET","RC_BACKUP_SET"]
犯罪原因与犯罪条件的区别。
新文学第一个纯文学刊物是经文学研究会改革后的《（）》。
