As there was a power failure in the hospital, the doctor had to （）operation.A、call forB、call offC、call onD、cal lout
As there was a power failure in the hospital, the doctor had to （）operation.
- A、call for
- B、call off
- C、call on
- D、cal lout
相关考题：
On Thursday August 14th, a massive power failure switched off lights and shut down factories across a large area of the north-eastern United States and southern Canada. The outcome affected some of the world's biggest and busiest cities, including New York, Detroit, Cleveland and Toronto, leaving up to 60m people without electricity, equivalent to the entire population of France or Britain.So severe was the disruption (破坏) in New York State that its governor, George Pataki, declared a state of emergency. Confused workers spilled on to the streets, while thousands more were trapped for hours in lifts and hot, crowded subway trains. Lots of stranded (进退两难的) people ended up spending Thursday night on New York's streets. Thieves in Brooklyn in New York, and in Canada's capital, Ottawa, took advantage of the absence of streetlights and burglar alarms, and went on a looting spree (疯狂抢掠). Officials were taken aback by the speed at which the chaos unfolded. President George Bush described the incident as a "massive national problem" and promised a full investigation into what caused it.That is still a matter of some debate. At first, naturally, there were fears of terrorist involvement, but this was quickly ruled out. However, officials were left arguing about what had actually happened. The office of Canada's prime minister, Jean Chretien, said that a severe accident at a nuclear-power plant in Pennsylvania may have been the cause. Earlier, American and Canadian officials had said a fire or perhaps lightning had hit a power plant near Niagara Falls in New York State.1、Several cities were affected by the massive power failure on August 14th except____.A、OttawaB、ClevelandC、ChicagoD、Brooklyn2、The word "outage" in Paragraph 1 can be best replaced by____.A、power shortcutB、 disruptionC、 massive national problemD、 power failure3、Which of the following statements is true according to the passage?____A、Many streetlights and burglar alarms were stolen during the blackout.B、Some terrorists were involved in the incident.C、President George Bush demanded a full investigation into the disruption in New York.D、Officials were not sure what had caused the power failure.4、It can be inferred from the passage that____.A、France has a population of about 60 million.B、Only some large cities were affected by the power failure.C、 Canada's prime minister knew what had caused the power failure.D、Water was spilt onto the streets by confused workers.5、The power failure on August 14th brought about big chaos except that____.A、thousands of people were trapped in liftsB、 many people had to stay on streets for Thursday night.C、 stores were robbed by the thieves.D、a power plant near Niagara Falls was hit by a fire or lightning.
A technician has been asked to ensure a PC is supplied with power for a short time, during apower failure. The technician should install which of the following devices to ensure thisrequirement is easily met?（）A. Backup power generatorB. Uninterruptable power supplyC. Power line conditionersD. Surge protectors
Which of the following factors is the MOST likely cause of a power supply fan failure?() A. Extreme temperature variancesB. Extreme humidity variancesC. Power stability fluctuationsD. Excessive dust accumulation
Which statement concerning reserve sources of energy for GMDSS is FALSE ________．A.While the ship is at sea，there must be available at all times a supply of electrical energy sufficient to operate the radio installations and to charge any batteries used as part of a reserve source of energyB.Both the VHF and MF/HF installations must be simultaneously suppliedC.A means of ensuring a continuous supply of electrical power must be provided to all GMDSS equipment that could be affected by an interruption in powerD.If a UPS or equivalent is used to supply power to the ship's GPS receiver or other source of positional information，a means must be provided to ensure the continuous supply of the information in the event of a failure to the ship's main or emergency source of power
As there was a power failure in the hospital, the doctor had to （）operation.Acall forBcall offCcall onDcal lout
A technician has been asked to ensure a PC is supplied with power for a short time, during apower failure. The technician should install which of the following devices to ensure thisrequirement is easily met?（）A、Backup power generatorB、Uninterruptable power supplyC、Power line conditionersD、Surge protectors
Which of the following accurately describes the meaning of redundant cooling？（）A、The source of cooling to a RAID systemB、The cooling system in a redundant power supplyC、A cooling system that can be installed in case of failureD、A second cooling system in case of a failure
Which of the following can help prevent data loss on a RAID array in the event of a power failure？（）A、Using a RAID mirrorB、A battery backed write cacheC、Using RAID with parityD、A battery backed read cache
A computer boots up with the error "CMOS Checksum Failure." Which of the following components needs to be replaced？（）A、power supplyB、CMOS chipC、motherboardD、CMOS battery
Which of the following printer failure symptoms can be described as a condition where the internal feed mechanism has stopped working temporarily?（）A、Power cycleB、Paper jamC、No connectivityD、Corrupt printer driver
Which of the following factors is the MOST likely cause of a power supply fan failure？（）A、 Extreme temperature variancesB、 Extreme humidity variancesC、 Power stability fluctuationsD、 Excessive dust accumulation
An administrator reboots a ten drive server， with a RAID 10 array， after a power failure and receives an error logical drive failed. Which of the following is the MOST likely cause？（）A、 Corrupt file system tableB、 Backplane failureC、 Multiple drive failureD、 Bad cable
While installing the equipment for a new two-node cluster， it is discovered that the disk subsystem Rack has one connection to the power mains. The explanation given was that the disks are to be mirrored between the two disk drawers in the rack and that a failure in either of the disk drawers would simply result in half of the disk being lost. What can be done to avoid a single point of failure？（） A、 Customize HACMP to overcome quorum issues.B、 Add a second PDU to separate the power connections.C、 Use RAID5 when implementing two IO racks in a HACMP environment.D、 Add another shared disk to each volume group to avoid quorum issues during fallover.
Company.com has a new computer room that will be used to house a new HACMP cluster. Onceof the outstanding features of the new computer room was the new large air conditioner. This unit has enough excess capacity for more than double the planned amount of equipment. Another feature of this computer room was the dual electric supplies to the room housed in two separate power panels. How would this impact the overall availability of the environment？（）A、 Dual power feeds will make the installation difficult to manage and less high available.B、 The single air conditioner is a single point of failure and the customer should be made aware of the issue.C、 The single air conditioner is a single point of failure and HACMP should be customized to compensate for the issue.D、 A single power feed should be used to avoid ground loops in the computer room causing premature failure of the systems.
What is the minimum number of CECs required to avoid single points of failure on a Power 570 server?（）A、1B、2C、3D、4
单选题Company.com has a new computer room that will be used to house a new HACMP cluster. Onceof the outstanding features of the new computer room was the new large air conditioner. This unit has enough excess capacity for more than double the planned amount of equipment. Another feature of this computer room was the dual electric supplies to the room housed in two separate power panels. How would this impact the overall availability of the environment？（）A Dual power feeds will make the installation difficult to manage and less high available.B The single air conditioner is a single point of failure and the customer should be made aware of the issue.C The single air conditioner is a single point of failure and HACMP should be customized to compensate for the issue.D A single power feed should be used to avoid ground loops in the computer room causing premature failure of the systems.
单选题Which of the following can help prevent data loss on a RAID array in the event of a power failure？（）AUsing a RAID mirrorBA battery backed write cacheCUsing RAID with parityDA battery backed read cache
单选题Which of the following factors is the MOST likely cause of a power supply fan failure？（）A Extreme temperature variancesB Extreme humidity variancesC Power stability fluctuationsD Excessive dust accumulation
单选题What is the minimum number of CECs required to avoid single points of failure on a Power 570 server?（）A1B2C3D4
单选题As there was a power failure in the hospital, the doctor had to （）operation.Acall forBcall offCcall onDcal lout
单选题While installing the equipment for a new two-node cluster， it is discovered that the disk subsystem Rack has one connection to the power mains. The explanation given was that the disks are to be mirrored between the two disk drawers in the rack and that a failure in either of the disk drawers would simply result in half of the disk being lost. What can be done to avoid a single point of failure？（）A Customize HACMP to overcome quorum issues.B Add a second PDU to separate the power connections.C Use RAID5 when implementing two IO racks in a HACMP environment.D Add another shared disk to each volume group to avoid quorum issues during fallover.
单选题A customer has provided the pSeries technical specialist with details of an HACMP solution that they would like validated. The solution is for two POWER4+ p630 servers directly attached to a FAStT600 storage server as the shared storage. Each system has the following： ？ 2 integrated network ports ？ 2 fibre channel adapter cards ？ 1 power supply and redundant cooling ？ HACMP v5.1 In addition to a second power supply， what further requirements， if any， are needed to validate this solution and ensure no single point of failure？ （）AOne fibre channel switchBTwo fibre channel switchesCTwo Ethernet cardsDNothing
单选题The power failure ______.Amight have been caused by terrorist attacks.Baffected more than 120 million people.Cstranded travelers at airports and train stations.Dhampered cash machines but not cellular telephone service.
单选题Under normal operating conditions, the rudder is hydraulically locked unless （）.Athe manual trick wheel is engaged for steeringBthe variable stroke pump is off strokeCa rudder order is given by the control systemDan electric power system failure occurs at the steering gear
单选题A power failure in the hydraulic system of a compact type steering gear would cause the rudder to（）Aswing 35°right or leftBremain locked in its last positionCmove to the mid-ship position automaticallyDjam against the rudder emergency stops
单选题An administrator identifies that a server is shutting down. The administrator powers up the server and OS loads but after a few minutes it powers down again. Which of the following is the cause？（）A Redundant power supply failureB CPU overheatingC Memory failureD Hard disk failure
单选题A technician has been asked to ensure a PC is supplied with power for a short time, during apower failure. The technician should install which of the following devices to ensure thisrequirement is easily met?（）ABackup power generatorBUninterruptable power supplyCPower line conditionersDSurge protectors