Bernoulli’s equation can be derived from the conservation of （）A、energyB、massC、volume   D、pressure

题目

Bernoulli’s equation can be derived from the conservation of （）

  • A、energy
  • B、mass
  • C、volume   
  • D、pressure
相似考题

1.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.

2.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

3.We can draw a conclusion from the text that______.A) oil-price shocks are less shocking nowB) inflation seems irrelevant to oil -price shocksC) energy conservation can keep down the oil pricesD) the price rise of crude leads to the shrinking of heavy industry

4.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)

更多“Bernoulli’s equation can be derived from the conservation of （）A、energyB、massC、volume   D、pressure”相关问题

  • 第1题：

    The ‘fsck －p ／dev／lv00’command returned thefollowing message: Not a recognized filesystem type What is the likely cause of the problem and how should it be resolved?()

    A.The file system superblock is dirty. It can be replaced from the VGDA

    B.The logical volume superblock is dirty. It can be replaced from the VGDA

    C.The file system superblock is dirty. It can be replaced from the secondary copy

    D.The logical volume superblock is dirty. It can be replaced from the secondary copy


    参考答案：C

  • 第2题：

    Temperature and moisture characteristics are modified in a warm or cold air mass due to ______.

    A.pressure changes in the air mass

    B.movement of the air mass

    C.the heterogeneous nature of the air mass

    D.upper level atmospheric changes


    正确答案：B

  • 第3题：

    The ‘fsck -p /dev/lv00’ command returned the following message：Not a recognized filesystem type. What is the likely cause of the problem and how should it be resolved？（）

    • A、The file system superblock is dirty. It can be replaced from the VGDA
    • B、The logical volume superblock is dirty. It can be replaced from the VGDA
    • C、The file system superblock is dirty. It can be replaced from the secondary copy
    • D、The logical volume superblock is dirty. It can be replaced from the secondary copy

    正确答案:C

  • 第4题：

    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.

    正确答案:D

  • 第5题：

    单选题
    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


    正确答案： D
    解析：
    分析推理题。由最后一段第一句中的“worst”可知作者的态度，即反对强迫学龄前孩子完成任务。而后一句则引述专家的话提出相应的建议。因此，作者是反对给孩子们施加不当的压力的，故D项为正确答案。

  • 第6题：

    单选题
    What can be determined about an injury from examining the condition of a victim’s pupils? （）
    A

    The degree of pain being suffered

    B

    The degree of vision impairment

    C

    Whether or not the brain is functioning properly

    D

    Whether or not the victim's blood pressure is normal


    正确答案： B
    解析： 暂无解析

  • 第7题：

    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？（）
    A

    Create a file screen.

    B

    Create a file management task.

    C

    Modify the properties of the quota.

    D

    Modify the properties of the Audio and Video Files file group.


    正确答案： C
    解析： 暂无解析

  • 第8题：

    单选题
    Large, two-stroke/cycle, main propulsion, diesel engine cylinders can be successfully pressure charged during normal operation, by using the （）.
    A

    exhaust gas temperature system

    B

    exhaust load system

    C

    constant or pulse pressure system

    D

    constant volume system


    正确答案： B
    解析： 暂无解析

  • 第9题：

    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?（）
    A

    Refrigerator

    B

    Refrigerant

    C

    Cooling medium

    D

    Brine


    正确答案： A
    解析： 暂无解析

  • 第10题：

    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？（）
    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.


    正确答案： A
    解析： 暂无解析

  • 第11题：

    单选题
    The direction of the surface wind is（）.
    A

    directly from high pressure toward low pressure

    B

    directly from low pressure toward high pressure

    C

    from high pressure toward low pressure deflected by the earth's rotation

    D

    from low pressure toward high pressure deflected by the earth's rotation


    正确答案： C
    解析： 暂无解析

  • 第12题：

    单选题
    We can draw a conclusion from the text that ______.
    A

    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


    正确答案： C
    解析：
    综合理解题。文章的主要内容着重于与20世纪70年代相比，现今的石油价格波动情况及其影响。从第三段开头阐明：“there are good reasons to expect the economic consequences now to be less severe than in the 1970s”，说明现今的情况没有70年代那么严重，也就是说现今的石油价格波动不会像以前那样对经济带来如此重大的影响。第四段开头进一步阐述到“Rich economies are also less dependent on oil than they were, and so less sensitive to swings in the oil price”，即石油价格波动已经没有以前那么激烈了。

  • 第13题：

    We can draw a conclusion from the text that

    A 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.


    正确答案：A

  • 第14题：

    In an iostat report， which of the following options best describes the value of % tm_act？（）

    • A、 The total CPU usage for this drive
    • B、 The bandwidth utilization of the indicated drive
    • C、 It can best be represented by the equation （%iowait - %ioidle）
    • D、 It can best be represented by the equation （kilobytes read/kilobytes written） *100

    正确答案:B

  • 第15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？（）

    • 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.

    正确答案:D

  • 第16题：

    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.
    A

    There were energy

    B

    There was energy

    C

    Were energy

    D

    If energy is


    正确答案： C
    解析：
    句意：如果能量自然的从冰传递到周围的水中，这就与能量守恒定律完全吻合。由于句子后半部分采用过去式，故D项错误。前半句明显是一个条件状语从句，排除A、B两项，C项是倒装形式，原型是if energy were，故C项正确。

  • 第17题：

    单选题
    An indicator card or pressure-volume diagram, shows graphically the （）
    A

    compression ratio of the engine

    B

    volume of the engine

    C

    relationships between pressure and volume during one stroke of the engine

    D

    relationships between pressure and volume during one cycle of the engine


    正确答案： D
    解析： 暂无解析

  • 第18题：

    单选题
    “Mozart’s can” underlined in Paragraph 2 refers to.
    A

    his human feelings can be understood

    B

    Mozart’s music can be analyzed carefully

    C

    his harmonies, rhythms, etc. can be separated from one another

    D

    his musical language can be separated from his personality


    正确答案： B
    解析：
    推断题。第一段指出作曲家的语言都很难从精神和敏感性中分离出来，但同时提到“except by pedantic analysis…of the artist who happens to be expressing himself through them”。第二段第一句指出“但这恰好是问题所在；就我所知，莫扎特就能”，由此可知此处指莫扎特能将他的音乐语言同自己的性格分隔开来，故选项D为正确答案。

  • 第19题：

    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.
    A

    There were energy    

    B

    There was energy

    C

    Were energy

    D

    If energy is


    正确答案： D
    解析：
    如果能量自然的从冰传递到周围的水中，这就与能量守恒定律完全吻合。由于句子后半部分采用过去式，故D项错误。前半句明显是一个条件状语从句，排除A、B两项，C项是倒装形式，原型是if energy were，故C项正确。

  • 第20题：

    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 drive

    B

     The bandwidth utilization of the indicated drive

    C

     It can best be represented by the equation （%iowait - %ioidle）

    D

     It can best be represented by the equation （kilobytes read/kilobytes written） *100


    正确答案： A
    解析： 暂无解析

  • 第21题：

    单选题
    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.


    正确答案： A
    解析： 暂无解析

  • 第22题：

    单选题
    Which of the following best describes the thermodynamic effect on the pressure and volume relationship with regards to saturated gases?（）
    A

    As pressure decreases, volume increases

    B

    As volume increases, pressure increases

    C

    As volume decreases, pressure decreases

    D

    As pressure increases, volume increases


    正确答案： A
    解析： 暂无解析

  • 第23题：

    单选题
    The thermostatic valve has a throttling action, that is to say the valve can（）
    A

    stop the refrigerant from flowing

    B

    force the refrigerant to flow

    C

    cause the refrigerant pressure to rise

    D

    cause the refrigerant pressure to fall


    正确答案： D
    解析： 暂无解析

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