When performing an incomplete recover of the whole database， which data files must you restore？ （） ["Only the damaged or lost data files.","All of the data files of the database.","Only the data files belonging to the SYSTEM tablespace.","The data files belonging to the SYSTEM tablespace and the damaged or lost data files."]
什么样是乳化液？形成乳化液的条件是什么？
两审终审制
Given： Which three are true？（） ["Cat is-a Animal","Cat is-a Jumper","Dog is-a Animal","Dog is-a Jumper","Cat has-a Animal","Beagle has-a Tail"]
道德总原则。
DataTable有三种集合：（）、（）和（）。
