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单选题
74 A until B when C although D because
A
A
B
B
C
C
D
D
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He had no plans to retire _______he is now very comfortably off.
(A) until(B) when(C) because(D) even though
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It was_____back home after the test.
A、not until midnight did he go.B、until midnight that he didn’t go.C、not until midnight that he went.D、until midnight when he didn’t go.
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● An internet is a combination of networks connected by （71） . When a datagram goes from a source to a （72） , it will probably pass many （73） until it reaches the router attached to the destination network. A router receives a （74） from a network and passes it to another network. A router is usually attached to several networks. When it receives a packet, to which network should it pass the packet? The decision is based on optimization: Which of the available （75） is the optimum pathway?（71）A. modemsB. routersC. switchesD. computers（72）A. userB. hostC. cityD. destination（73）A. destinationsB. routersC. packetsD. computers（74）A. destinationB. resourceC. packetD. source（75）A. pathwaysB. routersC. diagramsD. calls
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It was _____ he came bank from Africa that wear _________ he met the girl he would like to marry.A. when; thenB. not; untilC. not until; thatD. only; when
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____ the forties ____ the first fully automatic factory was built in the world.
A.It was not until ...thenB.It was not until ...thatC.It was until ...thatD.It was not until ...when
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Not until 1868 ______ made the capital of the state of Georgia.A：Atlanta wasB：was AtlantaC：when Atlanta wasD：when was Atlanta
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An internet is a combination of networks connected by (71) .When a datagram goes from a source to a (72) ，it will probably pass many (73) until it reaches the router attached to the destination network．A router receives a (74) from a network and passes it to another network．A router is usually attached to several networks．When it receives a packet，to which network should it pass the packet? The decision is based on optimization： Which of the available (75) is the optimum pathway?A．modemsB．routersC．switchesD．computers
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The usual address for a Web site is the(74)page address, although you can enter the address of any page and have that page sent to you.A．homeB．mainC．hostD．house
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●A (74)is aformal set ofrules for specifying the format and relationship when exchanging data among communicating devices.(74)A. protocolB.languageC.programD.command
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● Since RAM is only active when the computer is on, your computer uses disto store information even when the computer is off. Which of the following itrue? （74）（74）A．When your computer is on, only RAM is used to store informationB．When your computer is on, only disk drives are used to storinformation.C．When your computer is off, only RAM is used to store informationD．When your computer is off, only disk drives are used to storinformation.
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They decided to chase the cow away______ it did more damage.A.although
B.before
C.until
D.unless
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It( )we had stayed together for a couple of weeks( )I found we had a lot in common. A.was until；when
B.was until；that
C.wasn’t；when
D.wasn’t until；that
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When you are performing media recover， and an archived log is lost or corrupt， which type of recover must you perform？（）A、Until SCNB、Until timeC、Until cancelD、Recover using backup control file.
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You have only two redo log groups and these groups get overwritten several times in a day. Your database operates in NOARCHIVELOG mode and user-managed consistent backups are performed every Sunday night. On Thursday morning， you find that an important table has been dropped and purged. With reference to this scenario， up to what point in time can the data be recovered？（）A、 until Thursday morningB、 until that point in time when the database is openedC、 until that point in time when the recovery is performedD、 until last Sunday’s backupE、 until that point in time when the table is dropped and purgedF、 until Wednesday evening
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Which of the following are valid until command options when attempting point-in-time recovery in RMAN？（）A、 until timeB、 until changeC、 until sequenceD、 until SCNE、 until commit
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In which three situations is incomplete recovery required？（）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.
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单选题When a refrigeration compressor is in the ‘off’ cycle, the thermal expansion valve will（）.A
always be wide open when the compressor restartsB
continue to operate as if the system were in operationC
remain open until evaporator pressure equalizes, then close until the compressor restartsD
always be completely closed until the compressor restarts
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单选题It was ______ the chief engineer came ______ we began the experiment.A
not until; that B
not until; then C
until; that D
until; when
考题
单选题It was _____ back home after the experiment.A
not until midnight did he goB
until midnight that he didn’t goC
not until midnight that he wentD
until midnight when he didn’t go
考题
单选题You have only two redo log groups and these groups get overwritten several times in a day. Your database operates in NOARCHIVELOG mode and user-managed consistent backups are performed every Sunday night. On Thursday morning， you find that an important table has been dropped and purged. With reference to this scenario， up to what point in time can the data be recovered？（）A
until Thursday morningB
until that point in time when the database is openedC
until that point in time when the recovery is performedD
until last Sunday’s backupE
until that point in time when the table is dropped and purgedF
until Wednesday evening
考题
单选题74 A Although B After C Where D BeforeA
AB
BC
CD
D
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