Pitch is produced by frequency of vibration of the vocal cords. The higher the frequency, the higher the pitch.（）

题目

Pitch is produced by frequency of vibration of the vocal cords. The higher the frequency, the higher the pitch.（）

相似考题

1.pulse repetition frequency, PRF

2.The maximum data rate of any single wireless link can be described by the shannon’s theorem which is related to the（）in hertz，and the（）on the channelA．signal frequency B．bandwidth C．carrier frequency D．noise frequency A．signal B．caeeier C．noise D．data signal

3.Voicing is the vibrating of the vocal cords when sounds are produced.()

4.LTE室外同频组网下的频率规划演变成基于『____』的ICIC。(The frequency plan evolved into the ICIC based『____』in LTE network with the same frequency.)

更多“Pitch is produced by frequency of vibration of the vocal cords. The higher the frequency, the higher the pitch.（）”相关问题

  • 第1题：

    Generally speaking, native words have a higher frequency of use than loanwords.( )

    此题为判断题(对，错)。


    正确答案：正确

  • 第2题：

    Shorter pulse lengths which may be repeated at a faster rate (higher pulse repetition frequency) on short ranges will give______at those ranges．

    A.Good Bearing discrimination

    B.Good Range discrimination

    C.Poor Bearing discrimination

    D.Poor Range discrimination


    正确答案：B
    一个短的脉冲长度，能测量精确的距离。

  • 第3题：

    OFDM的英文是()

    A.OverloadFrequencyDivisionMultiplexing

    B.Orthogonal?Frequency?Division?Multiplexing

    C.Overwhelming?Frequency?DivisionMultiplexing

    D.Outstanding?Frequency?Division?Multiplexing


    正确答案：B

  • 第4题：

    The use of pulse groups and extremely precise timing at each Loran-C station makes possible the use of ______．

    A.High frequency pulses

    B.Combinations of high and low frequency pulses

    C.The same frequency for all stations in a chain

    D.Varied long and short pulses


    正确答案：C

  • 第5题：

    Pitch is produced by frequency of vibration of the vocal cords. The higher the frequency, the higher the pitch.（）

    A对

    B错


    对
    略

  • 第6题：

    Which type of interference is produced by other transmitters on the same frequency? （）

    • A、Double interference
    • B、Co-channel interference
    • C、Adjacent channel interference
    • D、Reflected interference
    • E、Timing interference

    正确答案:B

  • 第7题：

    OFDM的英文全称是（）

    • A、Orthogonal Frequency Division Multiplexing
    • B、Outstanding Frequency Division Multiplexing
    • C、Overwhelming Frequency Division Multiplexing
    • D、Orthogonal Frequency Division Modulation

    正确答案:A

  • 第8题：

    单选题
    The use of pulse groups and extremely precise timing at each Loran-C station makes possible the use of（）.
    A

    High frequency pulses

    B

    Combinations of high and low frequency pulses

    C

    The same frequency for all stations in a chain

    D

    Varied long and short pulses


    正确答案： B
    解析： 暂无解析

  • 第9题：

    单选题
    Less scale formation occurs in a flash evaporator than in a submerged tube evaporator because （）.
    A

    the distillate produced has greater purity

    B

    no boiling occurs on heat transfer surfaces

    C

    evaporation occurs at a higher rate

    D

    the incoming feed is at a higher temperature


    正确答案： B
    解析： 暂无解析

  • 第10题：

    单选题
    When can routine communications be resumed on a frequency or channel on which radio silence has been imposed? （）
    A

    After determining that the frequency or channel appears to be no longer in use

    B

    After determining that geographic distance from the distress situation will prohibit any other signal from interfering with emergency communications

    C

    After the Rescue Coordination Center transmits a message on the frequency or channel being used for emergency communications stating that such traffic has concluded

    D

    Routine communications can resume if，in the Master's opinion，communications on that frequency or channel will not interfere with emergency communications


    正确答案： C
    解析： 暂无解析

  • 第11题：

    单选题
    An alternator switchboard has a synchroscope and synchronizing lamps, if the synchroscope is broken, which of the steps listed is the most essential before an alternator can be paralleled with the bus （）
    A

    The breaker should be closed when one synchronizing lamp is dark and the other is bright

    B

    The breaker should be closed when both synchronizing lamps are bright

    C

    The frequency meter should be used to determine that the incoming alternator frequency is slightly higher than the bus

    D

    A portable phase sequence indicator must be used to verify the information from the lamps


    正确答案： C
    解析： 暂无解析

  • 第12题：

    单选题
    In many areas atoll clouds (clouds of vertical development) are produced over small islands. These are the result of（）.
    A

    rising air currents produced by the warm islands

    B

    warm air from the sea rising over higher land areas

    C

    cool land air mixing with warm sea air

    D

    descending air over the islands


    正确答案： C
    解析： 暂无解析

  • 第13题：

    The larger the house is, ______.

    A. the higher rent it is

    B. the higher rent it would have

    C. the higher the rent is

    D. the higher rent it would be


    参考答案：B

  • 第14题：

    You are attempting to parallel two AC.generators, and the synchroscope pointer revolving in the fast direction.This indicates that the frequency of the incoming machine is

    A.higher than the bus equency

    B.lower than the bus equency

    C.the same as the bus frequency but out of phase with it

    D.same as the bus frequency and the circuit breaker may be closed at


    答案：B

  • 第15题：

    You are attempting to parallel two AC generators, and the synchroscope(同步器) pointer is revolving in the fast direction. This indicates that the frequency of the incoming machine is ______.

    A.higher than the bus frequency

    B.lower than the bus frequency

    C.the same as the bus frequency but out of phase with it

    D.the same as the bus frequency and the circuit breaker may be closed at any pointer position


    正确答案：A

  • 第16题：

    /s/and/θ/can be distinguished by__________.

    A．manner of articulation
    B．place of articulation
    C．vibration of the vocal cords
    D．aspiration of articulation

    答案：B
    解析：
    考查辅音的分类。按照发音方式，／s／和／θ／均属于擦音；按照发音部位(place of articulation)，／s／是齿龈音，／θ／是齿音；二者都是清辅音且都送气．故选B。

  • 第17题：

    发布频次（Frequency）


    正确答案:是一段时间或期间内向同一浏览器播发某一广告的次数。网站需要使用跟踪文件来管理广告播发次数。

  • 第18题：

    FDM的英文是（）

    • A、Overload Frequency Division Multiplexing 
    • B、Orthogonal Frequency Division Multiplexing 
    • C、Overwhelming Frequency Division Multiplexing 
    • D、Outstanding Frequency Division Multiplexing

    正确答案:B

  • 第19题：

    跳频为（）。

    • A、frequency hopping
    • B、frequency spreading
    • C、frequency sequence
    • D、chirp

    正确答案:A

  • 第20题：

    单选题
    The Eos authors claim all of the following EXCEPT that _____.
    A

    the possible higher frequency of flood raises concerns about dam safety

    B

    conventional dam design hasn’t realized the possible feedback mechanisms

    C

    dam design protocol shouldn’t assume unchanging extreme precipitation events

    D

    the dams’ function has been weakened mainly because it is getting older


    正确答案： D
    解析：
    事实细节题。由文章最后一句可知，导致大坝不再安全的因素有很多，大坝的年龄只是其中之一，所以D“大坝功能的削弱主要是因为它正变得更旧”与文章意思不符，为正确答案。

  • 第21题：

    单选题
    When it is accepted to remain on the frequency indicated，you should say（）.
    A

    Standing by on VHF frequency

    B

    Coming to VHF frequency

    C

    VHF frequency. is the best place for you to stay by

    D

    remaining in frequency. and do not change


    正确答案： A
    解析： 暂无解析

  • 第22题：

    单选题
    Which characteristic is a disadvantage of a controllable- pitch propeller as compared to a fixed-pitch propeller? （）
    A

    Slightly higher fuel consumption

    B

    Lack of directional control when backing

    C

    Inefficient at high shaft RPM

    D

    Some unusual handling characteristics


    正确答案： A
    解析： 暂无解析

  • 第23题：

    判断题
    Pitch is produced by frequency of vibration of the vocal cords. The higher the frequency, the higher the pitch.（）
    A

    对

    B

    错


    正确答案： 对
    解析： 暂无解析

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