What will be the result of using the SQL> DROP USER SCOTT CASCADE； command？（）

A . The command will not execute successfully because TIMEOUT is an invalid clause with the ALTER DATABASE ENABLE RESUMABLE command. B .  The command will not execute successfully because resumable space allocation is enabled at the session level. C .  The command will execute successfully and resumable space will be allocated at the session level. D .  The command will execute successfully and resumable space will be allocated at the instance level.

A .  The control file will be multiplexed. B .  The control file will be recreated. C . The script containing the CREATE CONTROLFILE statement will be created. D .  The binary backup of the control file will be created.

A . Manning requirements B . Minimum freeboard permitted C . Grade(s) of cargoes that the vessel may carry D . Waters upon which the vessel may be operated

A . High jacket water pressure B . High lube oil pressure C . Low lube oil pressure D . Excessive turbo charger speed

A .  The code will run a backup validation to populate the V$BACKUP_CORRUPTION view and repair corrupt blocks， if any， recorded in the view. B .  The code will run a backup validate to populate the V$COPY_CORRUPTION view and then repair any corrupt blocks recorded in the view. C .  The code will runs a backup validate to populate the V$DATABASE_BLOCK_CORRUPTION view and then repair corrupt blocks， if any， recorded in the view. D .  The code will run a backup validate to populate the RC_BACKUP_CORRUPTION view and then repair corrupt blocks， if any， recorded in the view.

A .  The switch privilege will be granted to the user， Scott， for changing the consumer group to GRP1. B .  The switch privilege will be granted to the user， Scott， for changing the consumer group from GRP1 to any other group. C .  The code will not execute successfully because there is no GRANT_SWITCH_CONSUMER_GROUP procedure in the DBMS_RESOURCE_MANAGER_PRIVS package. D . The code will execute successfully but no privilege will be granted to the user， Scott.

A . password encryption service B . changes to the config-register setting C . the xmodem privilege EXEC mode command to recover the Cisco IOS image D . ROMMON

A .  The alter database archivelog command will fail B .  The alter database archivelog inconsistent command must be used to put the database in ARCHIVELOG mode C .  The alter database archivelog command will succeed D .  The alter database archivelog command will ask if you want to make the database consistent first E .  There is no alter database archivelog command. The correct command is alter database alterlogging

A .  Datafile 4 will be recovered until 9/30/2008 at 15：00 and the database will open. B .  The restore command will fail. C .  The recover command will fail. D .  The alter database open resetlogs command will fail. E .  All these commands will fail because they must be in the confines of a run block.

A . It will supplement domestic savings B . It will loosen the financial constraint C . It will push incomes up D . It will bring technology and skills from abroad

A . Any routes learned by R2 from the interface tied to the 172.16.0.0 network will not be advertised to neighbors on the 192.168.2.0 network. B . Only routes learned by R2 from the interface tied to the 172.16.0.0 network will be advertised to neighbors on the 192.168.2.0 network. C . Only the 172.16.0.0 network will be advertised to neighbors on the 192.168.2.0 network. D . All networks, except the 172.16.0.0 network will be advertised to neighbors on the 192.168.2.0 network .

A .  The job will be automatically disabled. B .  The job will never execute. C .  The job will attempt to execute but will fail. D .  The job will inherit the DEFAULT_SCHEDULE schedule. E .  A schedule object cannot be disabled.

A . Router A will prefer the path through router B for network 172.20.0.0 B . Router A will prefer the path through router C for network 172.20.0.0 C . Packets from router D will prefer the path through router B for networks advertised by router A D . Packets from r outer D will prefer the path through router C for networks advertised by router A

A . conduction B . radiation C . convection D . advectio

Will he need bones of steel and powerful muscles to resist rocket thrust，the lungs of a glass blower，a mighty heart，the calmness of an acrobat，unconscious death urges，or a schizophrenic(患精神分裂症的)drove toward isolation？ Popular ideas of a spaceman tend to be funny composites of fiction and fact. A more realistic portrait emerges from the young science of bioastronautics，the newest and strangest of medical disciplines.The astronaut may be described as a young man of high intelligence who is normal to an abnormal degree.On earth he may well have been a high diver，high jumper，pole vaulter，or acrobat.He must be highly motivated，carefully trained，and he must want to come back. His heart and lungs must be healthy but need not be exceptionally developed，for his cabin will be pressurized.Huge muscles may actually be disadvantageous，for he will have almost no way to get exercise，and he will find that the strength of a year old child is adequate in the weightlessness of space.A firm body and a short， strong neck will help him to withstand(抗拒;经得起……)the tremendous forces encountered at take off.Most important physically，his digestive system must be one that will not be upset by weightlessness;he must not be subject to motion sickness. () 41.All the following are popular beliefs about the future spaceman EXCEPT that . A.faced with isolation，he is brave enough and not liable to go mad B.he needs to have a strong death complex C.he must have strong bones and powerful muscles D.he must be cool headed () 42.Which of the following is NOT be considered by the author as a more realistic image of the future spaceman？ A.He must have superior intelligence. B.He is young. C.He should have a strong desire to survive. D.He doesn’t get upset easily. 43.Bioastronautics is mostly related to .() A.literature B.the science of medicine C.biology D.disciplines and regulations 44.“normal to an abnormal degree”(Para.3)means .() A.seemingly normal but actually abnormal B.so ordinary that he is undistinguished in every way C.extremely healthy，and there is nothing abnormal with him D.so normal that no one believes it is true 45.To the future spaceman，what is most physically important is that .() A.his vital capacity must be as great as a glass blowers B.he must have a short and firm neck C.his heart must be comparatively large D.his digestive system should not be upset by weightlessness