更多“Which unit is used for measuring”相关问题
  • 第1题:

    ______ is a contiguous, numbered set of variables of a given base type, which can be used and passed to functions as a unit.

    A.Record

    B.Array

    C.File

    D.Parameter


    正确答案:B
    解析:译文的含义是:()是给定了基类型的连续编号的变量集合,它能够作为参数传递给函数使用。A、B、C、D各选项的意思分别是:记录、数组、文件、参数。所以,根据题目的描述,应该选择数组。

  • 第2题:

    CDMA for cellular system can be described as follows. As with FDMA, each cell is allocated a frequency (71) , when is split into two parts, half for reverse (mobile unit to base station) and half for (72) (base station to mobile unit). For full-duplex (73) , a mobile unit both reverse and forward channels. Transmission is in the form. of direct-sequence spread (74) , which used a chipping code to increase the data rate of the transmission, resulting is an increased signal bandwidth. Multiple access is provided by assigning (75) chipping codes to multiple users, so that the receiver can recover the transmission of an individual unit from multiple transmissions.

    A.ware

    B.signal

    C.bandwidth

    D.domain


    正确答案:C
    用于蜂窝系统的CDMA技术可以描述如下。就像FDMA一样,每一个小区被分配了一个频带,该频带划分为两半,一半用于反向信道(从移动终端到基站),一半用于正向信道(从基站到移动终端)。在全双工通信中,移动终端使用了反向和正向两个信道。传输以直接序列扩频方式进行,用一个码片来增加传输的数据速率,同时也产生了额外的信号带宽。通过把正交的各个码片指定给不同的用户就可以实现多路访问,这样接收者就能够从多个传输中提取并恢复需要的传输单元。

  • 第3题:

    ______ means a unit in which goods are totally enclosed by sufficient strong boundaries such as a freight container, a tank or a vehicle unit with fabric sides or tops.

    A.UNIT

    B.CONTAINER

    C.VEHICLE

    D.CLOSED TYPE UNIT


    正确答案:D
    密闭式单元的意思是货物全部密闭,通过足够强的边界,像集装箱、货舱或车辆单位用纤维绳在边端或顶端的单元。

  • 第4题:

    As part of your design, you are evaluating whether a second-level organizational unit (OU) structure is required.  Which factor necessitates the need for a second-level OU structure?()

    • A、 Audit policy settings
    • B、 Software deployment needs
    • C、 Client operating systems in use
    • D、 Delegation of administrative authority

    正确答案:B

  • 第5题:

    What is the purpose of the OSPF router ID in a OR/BOR election?()

    • A、It is used with the OSPF priority values to determine which OSPF router will become the DR or BOR in a point-to-point network
    • B、It is used with the OSPF priority values to determine which interface will be used to form a neighbor relationship with another OSPF router
    • C、It is used with the OSPF priority values to determine which router will become the DR or BOR in a multi access network
    • D、It is used to determine which interfaces will send Hello packets to neighboring OSPF routers

    正确答案:C

  • 第6题:

    Which statement is correct about logical units on Juniper Router interfaces?()

    • A、Logical units are used only when a Layer 2 identifier is present such as a VLAN
    • B、A logical unit of 0 is required when using a frame-relay DLCI
    • C、A logical unit is always required
    • D、Logical units are not required unless ATM or 802.1Q VLAN tagging is configured.

    正确答案:C

  • 第7题:

    单选题
    () of an engine crankshaft can be detected by measuring deflections of crank webs for each unit of the engine.
    A

    Misalignment

    B

    Length

    C

    Strength

    D

    Stresses


    正确答案: A
    解析: 暂无解析

  • 第8题:

    单选题
    Decibel is______.
    A

    the unit for measuring the intensity of sound

    B

    the pressure of radiating waves

    C

    the frequency of radiating waves

    D

    the seed of sound


    正确答案: C
    解析:
    细节题。文章第三段第一句提到“Intensity, or loudness, is the strength of the pressure of these radiating waves and is measured in decibels”,即分贝是用来计量声音强度的,A项“计量音量的单位”符合原意。

  • 第9题:

    单选题
    As part of your design, you are evaluating whether a second-level organizational unit (OU) structure is required.  Which factor necessitates the need for a second-level OU structure?()
    A

     Audit policy settings

    B

     Software deployment needs

    C

     Client operating systems in use

    D

     Delegation of administrative authority


    正确答案: A
    解析: 暂无解析

  • 第10题:

    单选题
    Bourdon Tube is probably the most commonly used () measuring instrument.
    A

    the absolute pressure

    B

    the gauge pressure

    C

    the vacuum pressure

    D

    the differential pressure


    正确答案: D
    解析: 暂无解析

  • 第11题:

    单选题
    The Consol navigation system,used in Russian and Northern European waters,can be used().
    A

    for precise navigation in coastal waters

    B

    by measuring the phase difference of the dots and dashes

    C

    as an aid to ocean navigation

    D

    if the vessel is fitted with a special Consol receiver


    正确答案: A
    解析: 暂无解析

  • 第12题:

    单选题
    Which statement concerning current is TRUE().
    A

    Current can be determined by measuring the direction and distance between simultaneous EP and DR positions

    B

    The drift of the current should be averaged out on a one hour basis

    C

    After the current is determined,it should not be used for further plotting because it is an unknown variable

    D

    The distance between a simultaneous DR position and fix is equal to the drift of the current


    正确答案: B
    解析: 暂无解析

  • 第13题:

    Which statement is correct about logical units on Juniper Router interfaces?()

    A.Logical units are used only when a Layer 2 identifier is present such as a VLAN

    B.A logical unit of 0 is required when using a frame-relay DLCI

    C.A logical unit is always required

    D.Logical units are not required unless ATM or 802.1Q VLAN tagging is configured.


    参考答案:C

  • 第14题:

    Which statement concerning current is TRUE ________.

    A.Current can be determined by measuring the direction and distance between simultaneous EP and DR positions

    B.The drift of the current should be averaged out on a one hour basis

    C.After the current is determined,it should not be used for further plotting because it is an unknown variable

    D.The distance between a simultaneous DR position and fix is equal to the drift of the current


    正确答案:B

  • 第15题:

    Which logical unit number must be configured on an interface using PPP encapsulation?()

    • A、unit 0
    • B、unit 1
    • C、unit 100
    • D、unit 255

    正确答案:A

  • 第16题:

    Which statement is true about logical units?()

    • A、Logical units are similar to VLANs used by other vendors.
    • B、A logical unit is required for transit interfaces.
    • C、Frame Relay encapsulation supports one logical unit.
    • D、Link speed and duplex are configured in the logical unit properties.

    正确答案:B

  • 第17题:

    A customer plans to consolidate multiple business unit applications on a single Power Systems server. The maximum number of cores which can be used by each business unit must be limited by creating shared processor pools. What is the minimum PowerVM Edition which provides this feature?()

    • A、Basic
    • B、Express
    • C、Standard
    • D、Enterprise

    正确答案:C

  • 第18题:

    As part of your design, you are evaluating whether a second-level organizational unit (OU) structure is required. Which factor necessitates the need for a second-level OU structure?()

    • A、Audit policy settings
    • B、Software deployment needs  
    • C、Client operating systems in use
    • D、Delegation of administrative authority

    正确答案:B

  • 第19题:

    单选题
    The microsecond unit of time is used in radar applications. The microsecond represents which of the following?().
    A

    one-millionth part of a second

    B

    one-thousandth part of a second

    C

    one-hundredth part of a second

    D

    one-tenth part of a second


    正确答案: D
    解析: 暂无解析

  • 第20题:

    单选题
    Which statement is correct about logical units on Juniper Router interfaces?()
    A

    Logical units are used only when a Layer 2 identifier is present such as a VLAN

    B

    A logical unit of 0 is required when using a frame-relay DLCI

    C

    A logical unit is always required

    D

    Logical units are not required unless ATM or 802.1Q VLAN tagging is configured.


    正确答案: D
    解析: 暂无解析

  • 第21题:

    单选题
    ()is used for measuring horizontal and vertical angles.
    A

    The marine sextant

    B

    Thechronometer

    C

    The magnetic compass

    D

    The gyrocompass


    正确答案: D
    解析: 暂无解析

  • 第22题:

    单选题
    Which statement is true about logical units?()
    A

    Logical units are similar to VLANs used by other vendors.

    B

    A logical unit is required for transit interfaces.

    C

    Frame Relay encapsulation supports one logical unit.

    D

    Link speed and duplex are configured in the logical unit properties.


    正确答案: B
    解析: 暂无解析

  • 第23题:

    单选题
    When the engine room is put in standby condition, the engineer in charge of the watch need not to()
    A

    ensure all machinery which may be used during maneuvering is in ready

    B

    ensure an adequate reserve of power is available for steering gear and other requirements

    C

    keep the main propulsion unit controls continuously attended when in the manual mode of operation

    D

    ensure all machinery which may be used during maneuvering is running stably


    正确答案: D
    解析: 暂无解析