In which situation is shredding XML data recommended?（）

A . One vessel is approaching another vessel from more than 20° abaft the beam B . It is the duty of the vessel being overtaken to get out of the way C . Any later change of bearing between the two vessels shall not make the overtaking vessel a crossing vessel D . All of the above

A . one sidelight of a vessel ahead of you B . one sidelight and a masthead light of a vessel ahead of you C . one sidelight，a masthead light，and a range light of a vessel ahead of you D . both sidelights of a vessel dead ahead of you

A . one sidelight B . one sidelight and a masthead light C . one sidelight and two masthead lights D . both sidelights of a vessel and her masthead light(s)

A .  You find that one of the redo log members in each redo log group is lost. B .  You find that a data file that belongs to the USERS tablespace is damaged. C .  You find that a data file that belongs to the SYSTEM tablespace is damaged. D .  You find that the current redo log group is damaged and is not available for recovery. E .  You realized while performing a recovery that an archived redo log file needed for recovery is lost.

A . turning to port B . turning to starboard C . decreasing speed D . increasing speed

A . The online redo log files and archived redo log files are required to accomplish the recovery. B . The uncommitted transaction will be committed at the next startup of the database instance. C . The uncommitted transaction is rolled back automatically at the next opening of the database. D . The DBA has to perform the recovery on the database to recover the uncommitted transaction.

A . You find that one of the redo log members in each redo log group is lost. B . You find that a data file that belongs to the USERS tablespace is damaged. C . You find that a data file that belongs to the SYSTEM tablespace is damaged. D . You find that the current redo log group is damaged and is not available for recovery. E . You realized while performing a recovery that an archived redo log file needed for recovery is lost.

A . After the COPY command. B . After adding a data file in the target database. C . After adding a tablespace in the target database. D . After adding a tablespace in the catalog database. E . After dropping a data file in the catalog database. F . After running SQL Loader to load a large amount of data.

A .  Troubleshooting is more complicated. B .  Service and switch modules are underutilized. C .  Layer 2 adjacency is required with the servers that use this design. D .  Layer 3 adjacency is required with the servers that use this design. E .  Load balancing will always occur across both access layer uplinks.

A . 0° B . 10° C . 22.5° D . None of the above

A . Troubleshooting is more complicated. B . Service and switch modules are underutilized. C . Layer 2 adjacency is required with the servers that use this design. D . Layer 3 adjacency is required with the servers that use this design. E . Load balancing will always occur across both access layer uplinks.

A . After a shutdown abort. B . When recovering to an SCN. C . When recovering until a specific time. D . When a required archived log is missing.

A . Running a query on a table returns "ORA-600： Internal Error." B . Inserting a value in a table returns "ORA-01722： invalid number." C . Creating a table returns "ORA-00955： name is already used by an existing object." D . Inserting a value in a table returns "ORA-00001： unique constraint （SYS.PK_TECHP） violated." E . Rebuilding an index using ALTER INDEX ...REBUILD fails with an error "ORA-01578： ORACLE data block corrupted （file # 14， block # 50）.

A . At the end of every RUN block.  B . After every SET CONTROLFILE AUTOBACKUP FORMAT command.  C . After every BACKUP or COPY command issued at the RMAN prompt.  D . At the end of every RUN block if the last command in the block was either BACKUP or COPY.  E . Whenever a BACKUP or COPY command within a RUN block is followed by a command that is neither BACKUP nor COPY.  F . After every BACKUP or COPY command within a RUN block that is followed by the CONFIGURE CONTROLFILE AUTOBACKUP FORMAT command.

A . Element P B . Element Q C . Element R D . Element S E None of the above.

A、enhance the students' communicative competence B、combine pronunciation, vocabulary and grammar C、Combine words,phrases and sentences D、use body language and pictures

A.casual B.active C.negative

A．They did not abide by the traditional dress code B．They were not allowed to expose their arms and back. C．They could wear men’s riding garments. D．They could choose their own spouse or to divorce them. 此题为多项选择题。

A．America. B．Australia C．Canada. D．The U.K.