封堵是个作业中,为了防止中心钻在开孔过程中松动,应在中心钻上加装() 尼龙棒。 螺栓。 销钉。 卡子。
Which built-in would you use to test whether the CREATE TABLE command issued in the SALES form executed successfully?() FORMS_DDL 。 DO_SQL 。 FORM_SUCCESS 。 FORM_NOT_SUCCESS。 DBMS.ERROR_CODE。
周是我国最早的奴隶制国家之一,当时的税收主要采取了()这种低级形式。 A、捐 。 B、贡 。 C、助 。 D、彻。
You discover that your Recycle Bin contains two tables with the same name, MY_TABLE. You also have a table named MY_TABLE in your schema. You execute the following statement: FLASHBACK TABLE my_table TO BEFORE DROP RENAME TO my_table2; What will be the result of executing this statement?() One of the tables is recovered from the Recycle Bin using a First In First Out (FIFO) approach.。 One of the tables is recovered from the Recycle Bin using a Last In First Out (LIFO) approach.。 Both the tables are recovered from the Recycle Bin with one table renamed to MY_TABLE2 and the other to a system-generated name.。 None of the tables are recovered from the Recycle Bin, and the statement returns an error.。
行为人在实施不纯正不作为犯罪时,其罪过() 只能是故意。 只能是过失。 既可以是故意,也可以是过失。 只能是间接故意。
刘某,女性,25岁,被浓硫酸化学烧伤后,首选的急救处理是()