No more having to buy expensive textbooks which you will only use for a year or two and then sell or _______ away. 

—I think we can use two or more kinds of media together in an advertising campaign. 

—                      

Consider the events_% tables in performance Schema.
Which two methods will clear or reset the collected events in the tables?（）

You notice a performance change in your production Oracle 12c database. You want to know which change caused this performance difference.
Which method or feature should you use?（）

Project selection methods involve measuring value or attractiveness to the project owner or sponsor and may include other organizational decision criteria （）is not a project selection method.