参考答案和解析
正确答案:D
平均高潮是所有高潮潮高的平均值。
更多“Mean high water is the average height of ______.A.the higher high watersB.the lower high w ”相关问题
  • 第1题:

    听力原文:M: Some credit cards are called gold cards because they offer higher credit limits and lower interest rates.

    W: But the card holders should pay a significant annual fee, perhaps as high as £ 50.

    Q: What is the disadvantage for gold cards holders?

    (16)

    A.High credit limits

    B.High annual fee.

    C.Low interest rates.

    D.Monthly statements.


    正确答案:B
    解析:男士提到金卡的优点后,女士接着指出其缺点,即pay a significant annual fee,perhaps as high as £50,也就是年费高,B项正确。

  • 第2题:

    SATA相比较与ATA优势有哪些?()

    A.High-speed parallel connections

    B.Lower voltage

    C.Lower volume stripes

    D.Higher bandwidth


    参考答案:AD

  • 第3题:

    The height of a light is measured from which reference plane?

    A.Mean low water

    B.Mean high water

    C.Average water level

    D.Geographical sea level


    正确答案:B

  • 第4题:

    The period at high or low tide during which there is no change in the height of the water is called the ______.

    A.range of the tide

    B.plane of the tide

    C.stand of the tide

    D.reversing of the tide


    正确答案:C

  • 第5题:

    Contour elevations on this chart refer to heights in feet above mean ______.

    A.lower low water

    B.high water

    C.low water

    D.sea level


    正确答案:D

  • 第6题:

    Mean low water is the average height of ______.

    A.the surface of the sea

    B.high waters and low waters

    C.all low waters

    D.the lower of the two daily low tides


    正确答案:C

  • 第7题:

    SATA相比较与ATA优势有哪些?()

    • A、Lower volume stripes
    • B、High-speed parallel connections
    • C、Higher bandwidth
    • D、Lower voltage

    正确答案:B,C

  • 第8题:

    单选题
    The height of a light is measured from which reference plane?()
    A

    Mean low water

    B

    Mean high water

    C

    Average water level

    D

    Geographical sea level


    正确答案: D
    解析: 暂无解析

  • 第9题:

    单选题
    Heights are expressed()meters above mean high water.
    A

    in

    B

    on

    C

    by

    D

    with


    正确答案: D
    解析: 暂无解析

  • 第10题:

    单选题
    A tide is called diurnal when().
    A

    only one high and one low water occur during a lunar day

    B

    the high tide is higher and the low tide is lower than usual

    C

    the high tide and low tide are exactly six hours apart

    D

    two high tides occur during a lunar day


    正确答案: B
    解析: 暂无解析

  • 第11题:

    单选题
    One of the causes of ocean currents is density differences in the water. This is true because ().
    A

    in an area of high density the water's surface is lower than in an area of low density

    B

    surface water flows from an area of high density to one of low density

    C

    the lesser the density gradient the freer the water is to move

    D

    it is the density differences that cause the currents to stay in the troughs


    正确答案: B
    解析: 暂无解析

  • 第12题:

    单选题
    Mean high water is the average height of().
    A

    The higher high waters

    B

    The lower high waters

    C

    The lower of the two daily tides

    D

    All high waters


    正确答案: D
    解析: 暂无解析

  • 第13题:

    The annual change in______is -0.2 degree east in this water area.

    A.mean high water

    B.marine insurance

    C.magnetic variation

    D.maritime accident


    正确答案:C
    在这个水域磁差的年变化量是-0.2东。

  • 第14题:

    Conditions for crossing a rough bar are usually best at ______.

    A.low water slack

    B.high water slack

    C.high water ebb

    D.high water flood


    正确答案:B

  • 第15题:

    The height of tide is the ______.

    A.depth of water at a specific time due to tidal effect

    B.difference between the depth of the water and the area's tidal datum

    C.difference between the depth of the water and the high water tidal level

    D.difference between the depth of the water at high tide and the depth of the water at low tide


    正确答案:B

  • 第16题:

    The soundings on the chart are based on the depth of water available at ______.

    A.mean low water

    B.mean lower low water

    C.mean high water

    D.mean high water springs


    正确答案:B

  • 第17题:

    The annual change in ______ is 0.2 degree.

    A.Magnetic Variation

    B.Marine Insurance

    C.Maritime Accident

    D.Mean High Water Spring


    正确答案:A

  • 第18题:

    The average height of the surface of the sea for all stages of the tide over a 19 year period is called ______.

    A.mean high water

    B.mean low water

    C.half-tide level

    D.mean sea level


    正确答案:D

  • 第19题:

    单选题
    In some parts of the world there is often a slight fall in tide during the middle of the high water period. The effect is to create a longer period of stand at higher water. This special feature is called a(n)().
    A

    apogean tide

    B

    double high water

    C

    perigean tide

    D

    bore


    正确答案: C
    解析: 暂无解析

  • 第20题:

    单选题
    The height of tide is the ().
    A

    depth of water at a specific time due to tidal effect

    B

    difference between the depth of the water and the area's tidal datum

    C

    difference between the depth of the water and the high water tidal level

    D

    difference between the depth of the water at high tide and the depth of the water at low tide


    正确答案: A
    解析: 暂无解析

  • 第21题:

    单选题
    The soundings on the chart are based on the depth of water available at ().
    A

    mean low water

    B

    mean lower low water

    C

    mean high water

    D

    mean high water springs


    正确答案: B
    解析: 暂无解析

  • 第22题:

    单选题
    Mean low water is the average height of().
    A

    the surface of the sea

    B

    high waters and low waters

    C

    all low waters

    D

    the lower of the two daily low tides


    正确答案: A
    解析: 暂无解析

  • 第23题:

    单选题
    The period at high or low tide during which there is no change in the height of the water is called the ().
    A

    range of the tide

    B

    plane of the tide

    C

    stand of the tide

    D

    reversing of the tide


    正确答案: B
    解析: 暂无解析