对背信用证（Back to Back I/D）又称转开信用证，指受益人要求以原证的通知行或其它银行以原证为基础，另开一张内容相似的新信用证。

相似题目

• The time required to incline from port to starboard and back to port again is called（）.

  A . initial stability B . range of stability C . inclining moment D . rolling period

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• Which three protocols can be used to back up a UCS system?（）

  A . FTP B . RCP C . SCP D . TFTP

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• Which is the correct command to back up the database， back up the archived redo logs， and then remove the backed-up archived redo logs？（）  

  A .  backup database B .  backup database and archivelogs C .  backup database plus archivelogs D .  backup database plus archivelog delete input E .  backup database and archivelog delete input

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• （） comes back first is supposed to win the prize.

  A . One who B . Whoever C . Anyone D . Those who

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• User SCOTT wants to back out the transactions on the REGIONS table in his schema. As a DBA, whichcommands must you execute to enable SCOTT to flash back the transactions? （）(Choose four.)

  A . ALTER DATABASE FLASHBACK ON; B . GRANT SELECT any transaction TO scott; C . GRANT EXECUTE ON dbms_flashback TO scott; D . ALTER DATABASE ADD SUPPLEMENTAL LOG DATA; E . ALTER TABLESPACE undots1 RETENTION GUARANTEE; F . ALTER DATABASE ADD SUPPLEMENTAL LOG DATA (PRIMARY KEY) COLUMNS

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• 背对背贷款（Back-to-BackLoan）

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• User SCOTT wants to back out the transactions on the REGIONS table in his schema. As a DBA, which commands must you execute to enable SCOTT to flash back the transactions?（）

  A . ALTER DATABASE FLASHBACK ON; B . GRANT SELECT any transaction TO scott; C . GRANT EXECUTE ON dbms_flashback TO scott; D . ALTER DATABASE ADD SUPPLEMENTAL LOG DATA; E . ALTER TABLESPACE undots1 RETENTION GUARANTEE; F . ALTER DATABASE ADD SUPPLEMENTAL LOG DATA (PRIMARY KEY) COLUMNS

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• User SCOTT wants to back out the transactions on the REGIONS table in his schema. As a DBA， which commands must you execute to enable SCOTT to flash back the transactions？（）

  A .  ALTER DATABASE FLASHBACK ON B .  GRANT SELECT any transaction TO scott C .  GRANT EXECUTE ON dbms_flashback TO scott D .  ALTER DATABASE ADD SUPPLEMENTAL LOG DATA E .  ALTER TABLESPACE undots1 RETENTION GUARANTEE F .  ALTER DATABASE ADD SUPPLEMENTAL LOG DATA （PRIMARY KEY） COLUMNS

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• if the feedback signal is fed back to the reverting input, it is a ( ) feedback, and if the feedback signal is fed back to the nonreverting input, it is a ( ) feedback

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• The guest needs to check back with the receptionist tomorrow.

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• Mike wants to go back to the computer business.

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• In _____, he decided to go back to Beijing.

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• Miguel said,‘I should ______ back to my family. ’（ ）

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• if the feedback signal is fed back to the reverting input, it is a ( ) feedback, and if the feedback signal is fed back to the nonreverting input, it is a ( ) feedback

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• Which year can Ancient Egypt itself dates back to?

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• Mark Twain's friend paid back the money to him later.

  A．Right B．Wrong C．Doesn't say

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• Everybody was glad．to see Mary back．

  A．sorry B．sad C．angry D．happy

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• How long will it take for new forests to grow back？

  A．65 years. B．20 years. C．40 years.

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• You want to get your book back, ______ ？

  A．don't you B．do you C．aren't you

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• Why did Robby go back to the hot dog seller？

  A．She wanted to thank the hot dog seller. B．The homeless man asked her for a hot dog. C．She wanted to buy a hot dog for the homeless man. D．The hot dog was so delicious that Robby wanted another.

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• What happened to him when he came back to his car？

  A．The manager called him. B．His books were stolen. C．He saw a man coming to his car.

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• Go back to your home and leave me____.

  A．A.lonely B．B.alone C．C.along D．D.almost

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• What&8217;s the meaning of &8220;back-to-basics&8221;（）

  A．基于事实 B．返璞归真 C．脚踏实地 D．固若金汤

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• He can’t put the clock back, so he ___ to the fact.A.went back

  B.retreated C.restored D.resigned

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