Bernoulli’s equation can be derived from the conservation of （）A、energyB、massC、volume D、pressure
Bernoulli’s equation can be derived from the conservation of （）
- A、energy
- B、mass
- C、volume
- D、pressure
相关考题：
From the text, we can infer that the author[ A] favors the idea of putting children on a waiting list.[ B] agrees to test preschooler's cognitive potentials.[ C] thinks children should be better prepared academically[ D] disapproves of the undue pressure on preschoolers.
经食管超声中血流速度测定利用的原理是A、伯努利方程(Bernoulli equation)B、文丘里效应(Venturi effect)C、Stewart-Hamilton方程D、多普勒效应(Doppler effect)E、连续方程(Continuity equation)
The system’s characteristic equation can be used to determine ( ) of a linear time－invariant system. A.the stabilityB.magnitude of the steady-state errorC.the controllabilityD.the observability
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We can draw a conclusion from the text thatA oil-price shocks are less shocking now.B inflation seems irrelevant to oil-price shocks.C energy conservation can keep down the oil prices.D the price rise of crude leads to the shrinking of heavy industry.
Temperature and moisture characteristics are modified in a warm or cold air mass due to ______.A.pressure changes in the air massB.movement of the air massC.the heterogeneous nature of the air massD.upper level atmospheric changes
In an iostat report， which of the following options best describes the value of % tm_act？（）A、 The total CPU usage for this driveB、 The bandwidth utilization of the indicated driveC、 It can best be represented by the equation （%iowait - %ioidle）D、 It can best be represented by the equation （kilobytes read/kilobytes written） *100
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A system administrator’s daily monitoring has revealed a failing disk drive. The drive that is failing， hdisk0， is a lvm mirrored drive. What is the first step that should be taken in order to physically replace this drive？（）A、Remove the physical volume from the system.B、Remove the physical volume from the volume group.C、Remove the physical partitions from the volume group.D、Remove the logical volume copies from the failing drive.
What is the objective of the superstrict option that can be used when creating mirrors?（）A、Allows the mirror partitions to spread across a maximum number of disks.B、Allows the copy of a partition to be on the same physical volume as the mirrored partition.C、Prevents partitions allocated to one logical volume mirror from sharing a physical volume with partitions from another logical volume mirror.D、Forces copies of logical partitions to be housed on different physical volumes, while allowing a single physical volume to be shared by logical volume mirrors.
单选题_____ to flow spontaneously from a block of ice to a surrounding volume of water, this could occur in complete accord with energy conservation.AThere were energyBThere was energyCWere energyDIf energy is
单选题From the text, we can infer that the author ______.Afavors the idea of putting children on a waiting listBagrees to test preschooler’s cognitive potentialsCthinks children should be better prepared academicallyDdisapproves of the undue pressure on preschoolers
单选题An indicator card or pressure-volume diagram, shows graphically the （）Acompression ratio of the engineBvolume of the engineCrelationships between pressure and volume during one stroke of the engineDrelationships between pressure and volume during one cycle of the engine
单选题What can be determined about an injury from examining the condition of a victim’s pupils? （）AThe degree of pain being sufferedBThe degree of vision impairmentCWhether or not the brain is functioning properlyDWhether or not the victim's blood pressure is normal
单选题“Mozart’s can” underlined in Paragraph 2 refers to.Ahis human feelings can be understoodBMozart’s music can be analyzed carefullyChis harmonies, rhythms, etc. can be separated from one anotherDhis musical language can be separated from his personality
单选题Your network contains a file server named Server1 that runs Windows Server 2008 R2. Server1 has a volume named E.From the File Server Resource Manager console, you create a new quota for volume E. The quota is derived from the 100 MB limit quota template.You need to prevent users from storing audio and video files on volume E. What should you do？（）ACreate a file screen.BCreate a file management task.CModify the properties of the quota.DModify the properties of the Audio and Video Files file group.
单选题______ to flow spontaneously from a block of ice to a surrounding volume of water, this could occur in complete accord with energy conservation.AThere were energy BThere was energyCWere energyDIf energy is
单选题Large, two-stroke/cycle, main propulsion, diesel engine cylinders can be successfully pressure charged during normal operation, by using the （）.Aexhaust gas temperature systemBexhaust load systemCconstant or pulse pressure systemDconstant volume system
单选题In an iostat report， which of the following options best describes the value of % tm_act？（）A The total CPU usage for this driveB The bandwidth utilization of the indicated driveC It can best be represented by the equation （%iowait - %ioidle）D It can best be represented by the equation （kilobytes read/kilobytes written） *100
单选题What is the substance called which can readily be converted from a liquid into a vapor, and also from a vapor into liquid with a reasonably narrow range of pressure?（）ARefrigeratorBRefrigerantCCooling mediumDBrine
单选题What is the objective of the superstrict option that can be used when creating mirrors？（）AAllows the mirror partitions to spread across a maximum number of disks.BAllows the copy of a partition to be on the same physical volume as the mirrored partition.CPrevents partitions allocated to one logical volume mirror from sharing a physical volume with partitions from another logical volume mirror.DForces copies of logical partitions to be housed on different physical volumes， while allowing a single physical volume to be shared by logical volume mirrors.
单选题A system administrator’s daily monitoring has revealed a failing disk drive. The drive that is failing， hdisk0， is a lvm mirrored drive. What is the first step that should be taken in order to physically replace this drive？（）ARemove the physical volume from the system.BRemove the physical volume from the volume group.CRemove the physical partitions from the volume group.DRemove the logical volume copies from the failing drive.
单选题Which of the following best describes the thermodynamic effect on the pressure and volume relationship with regards to saturated gases?（）AAs pressure decreases, volume increasesBAs volume increases, pressure increasesCAs volume decreases, pressure decreasesDAs pressure increases, volume increases
单选题The direction of the surface wind is（）.Adirectly from high pressure toward low pressureBdirectly from low pressure toward high pressureCfrom high pressure toward low pressure deflected by the earth's rotationDfrom low pressure toward high pressure deflected by the earth's rotation
单选题The thermostatic valve has a throttling action, that is to say the valve can（）Astop the refrigerant from flowingBforce the refrigerant to flowCcause the refrigerant pressure to riseDcause the refrigerant pressure to fall
单选题We can draw a conclusion from the text that ______.Aoil-price shocks are less shocking nowBinflation seems irrelevant to oil-price shocksCenergy conservation can keep down the oil pricesDthe price rise of crude leads to the shrinking of heavy industry