The speed of radio waves is equal to ________of light.A. thoseB. thatC. the oneD. the ones

题目

The speed of radio waves is equal to ________of light.

A. those

B. that

C. the one

D. the ones

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更多“The speed of radio waves is equal to ________of light.A. thoseB. thatC. the oneD. the ones”相关问题

  • 第1题：

    The correction to be applied to a LoranC reading when matching a sky wave to a ground wave may be found______．

    A.on loran charts covering areas where sky waves are used

    B.in the Radio Aids to Navigation PUB 117

    C.in the LoranC Correction Tables

    D.Sky waves cannot be matched to ground waves in LoranC to produce a usable reading


    正确答案：A
    这个修正用于罗兰C查阅当天波到地波相匹配时天波在罗兰海图覆盖的海域被发现。

  • 第2题：

    The bearing of tailshaft sealing equipment which adopts the oil nature circulation is hot, the reason is

    A.the rotate speed fluctuation

    B.the ventilation tube clogged

    C.the main engine accelerate so fast

    D.stormy waves


    正确答案：B

  • 第3题：

    An aneroid barometer is an instrument ______.

    A.used to measure the speed of wind

    B.in which the pressure of air is measured

    C.that tells which direction a storm is coming from

    D.used to measure the height of waves


    正确答案：B
    无液[空盒]气压表是测量空气压力的一种仪器。

  • 第4题：

    在After Effects 6.5的渲染（Render）特效里，不用设置关键帧就可以自动生成动画的特效有：（）

    • A、高级闪电（Advance Lighting）
    • B、闪电（Lightning）
    • C、电波（Radio Waves）
    • D、棋盘格（Checkerboard)

    正确答案:B,C

  • 第5题：

    Which of the following is the maximum transmission speed for iSCSI？（）

    • A、1Gbps
    • B、2Gbps Full-Duplex
    • C、Equal to the speed of the link
    • D、100Mbps

    正确答案:C

  • 第6题：

    单选题
    The bearing of tailshaft sealing equipment, which adopting the oil nature circulation is hot, the reason is（）
    A

    the rotate speed fluctuation

    B

    the ventilation tube clogged

    C

    the main engine accelerate so fast

    D

    stormy waves


    正确答案： A
    解析： 暂无解析

  • 第7题：

    单选题
    The apparent wind can be zero when the true wind is from（）.
    A

    ahead and equal to the ship's speed

    B

    astern and equal to the ship's speed

    C

    ahead and equal to twice the ship's speed

    D

    astern and equal to twice the ship's speed


    正确答案： B
    解析： 暂无解析

  • 第8题：

    单选题
    Important changes to charts and lights（including temporary ones），radio signals and sailing directions are listed in（）.
    A

    Weekly Admiralty Notices to Mariners

    B

    The Mariners Handbook

    C

    Ocean Passages for the World

    D

    Symbols and Abbreviations used on Admiralty Charts，Chart 5011


    正确答案： D
    解析： 暂无解析

  • 第9题：

    单选题
    The flywheel reduces speed fluctuations by （）
    A

    maintaining a constant rack setting

    B

    storing kinetic energy

    C

    maintaining equal exhaust pressure

    D

    maintaining even camshaft speed


    正确答案： C
    解析： 暂无解析

  • 第10题：

    单选题
    The radio waves used for radar are very short，only（）long.
    A

    a few centimeters

    B

    a few fathoms

    C

    a few meters

    D

    a few feet


    正确答案： B
    解析： 暂无解析

  • 第11题：

    单选题
    （） thrust and resistance equal each other, the ship always travels at a constant speed.
    A

    As long as

    B

    As far as

    C

    As well as

    D

    Unless


    正确答案： C
    解析： 暂无解析

  • 第12题：

    单选题
    Some radio waves（）the surface of the earth because of its（）.
    A

    are capable of following / distance

    B

    can follow / altitude

    C

    can hardly follow / shape

    D

    are unable following / angle


    正确答案： A
    解析： 暂无解析

  • 第13题：

    ( ) people are my friends. ( ) people are my husband's friends.

    A. These, Those

    B. This, That

    C. Here, There


    答案：A

  • 第14题：

    When the prime movers of two paralleled generators are equipped with mechanical-hydraulic governors, and are operating within their designed range, the unit with the least amount of speed droop will .

    A.pick up more of any increase in load

    B.pick up less of any increase in load

    C.share an equal amount of any increase in load

    D.drop an equal amount of any decrease in load


    正确答案：A

  • 第15题：

    The vacuum tube,invented near the beginning of our century,gave us the use of radio waves,an energy source never before（ ）,and later opened the road for television.

    A.was captured
    B.captured
    C.capturing
    D.has been captured

    答案：B
    解析：
    该题考查独立主格结构。其中该句主干为The vacuum tube gave us the use of...the road for television。而energy source与capture间是被动关系,排除C选项.另外an energy source是对其前radio waves做进一步解释，可见“an energy source never before”不是一个句子，而是一成分，故答案为B。

  • 第16题：

    What is A WAN?（）

    • A、A network that is restricted.to A single building ,A group of buildings, or even A single room.
    • B、A network that encompasses an entire city or metropolitanared and connects multiple LANs.
    • C、A network that connects client devices wirelessly using radio waves.
    • D、A network that crosses metropolitan, regional, or national boundaries.

    正确答案:B

  • 第17题：

    单选题
    （）is a radio receiver with ablity to sense direction of the incoming radio waves.
    A

    The echo sounder

    B

    The radar

    C

    The course recorder

    D

    The direction finder


    正确答案： D
    解析： 暂无解析

  • 第18题：

    单选题
    An aneroid barometer is an instrument（）.
    A

    used to measure the speed of wind

    B

    in which the pressure of the air is measured

    C

    that tells which direction a storm is coming from

    D

    used to measure the height of waves


    正确答案： A
    解析： 暂无解析

  • 第19题：

    单选题
    The spur geared mooring winches have advantages over worm geared ones in（）
    A

    higher efficiency of the gear train while reversing

    B

    the higher gear ratio

    C

    the multi-start feature

    D

    higher recovering speed


    正确答案： D
    解析： 暂无解析

  • 第20题：

    单选题
    When the prime movers of two paralleled generators are equipped with mechanical- hydraulic governors, and are operating within their designed range, the unit with the least amount of speed droop will （）.
    A

    pick up more of any increase in load

    B

    pick up less of any increase in load

    C

    share an equal amount of any increase in load

    D

    drop an equal amount of any decrease in load


    正确答案： A
    解析： 暂无解析

  • 第21题：

    单选题
    A RADIO SIGNAL FROM A DISTRESSED VESSEL AUTOMATICALLY DIRECTED TO A RCC GIVING POSITION，IDENTIFICATION，COURSE AND SPEED OF THE VESSEL AS WELL AS THE NATURE OF DISTRESS is known as（）.
    A

    Distress alert

    B

    Safety alert

    C

    Emergency alert

    D

    General alert


    正确答案： C
    解析： 暂无解析

  • 第22题：

    单选题
    The correction to be applied to a Loran-C reading when matching a sky wave to a ground wave may be found（）.
    A

    on loran charts covering areas where sky waves are used

    B

    in the Radio Aids to Navigation，PUB 117

    C

    in the Loran-C Correction Tables

    D

    Sky waves cannot be matched to ground waves in LORAN-C to produce a usable reading


    正确答案： B
    解析： 暂无解析

  • 第23题：

    单选题
    An electronic depth finder operates on the principle that（）.
    A

    radio signals reflect from a solid surface

    B

    sound waves travel at a constant speed through water

    C

    radar signals travel at a constant speed through water

    D

    pressure increases with depth


    正确答案： B
    解析： 暂无解析

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