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举一反三
【单选题】The human voice, like any sound produced by thrumming a stretched string, has a fundamental frequency. For voice, the centre of that frequency lies mostly below 300Hz depending on the speaker"s . I...
A.
reducing noise and amplifying higher-frequency
B.
cutting down noise and enhancing certain frequencies
C.
stressing higher frequencies and impairing lower ones
D.
weakening the frequency range between 300Hz and 6kHz
【单选题】The human voice, like any sound produced by thrumming a stretched string, has a fundamental frequency. For voice, the centre of that frequency lies mostly below 300Hz depending on the speaker"s . I...
A.
Telephone can transmit a wide range of frequencies.
B.
Higher frequencies are more important than lower ones.
C.
People may use many parts of the mouth to utter consonants.
D.
Cutting off higher frequencies will not influence understanding.
相关题目：
【单选题】The human voice, like any sound produced by thrumming a stretched string, has a fundamental frequency. For voice, the centre of that frequency lies mostly below 300Hz depending on the speaker"s . I...
A.
reducing noise and amplifying higher-frequency
B.
cutting down noise and enhancing certain frequencies
C.
stressing higher frequencies and impairing lower ones
D.
weakening the frequency range between 300Hz and 6kHz
【单选题】The human voice, like any sound produced by thrumming a stretched string, has a fundamental frequency. For voice, the centre of that frequency lies mostly below 300Hz depending on the speaker"s . I...
A.
Telephone can transmit a wide range of frequencies.
B.
Higher frequencies are more important than lower ones.
C.
People may use many parts of the mouth to utter consonants.
D.
Cutting off higher frequencies will not influence understanding.
【判断题】基频决定音高，泛音决定音色
A.
正确
B.
错误
【判断题】以大字组的E为基音，第二号泛音是b1。（ ）
A.
正确
B.
错误
【判断题】练习泛音时一般食指在四徽练习。()
A.
正确
B.
错误
【判断题】弹奏泛音时，左手要用力压住琴弦。
A.
正确
B.
错误
【判断题】音色主要由材质、结构、泛音等决定。（ ）
A.
正确
B.
错误
【判断题】颤音的意思就是泛音。
A.
正确
B.
错误
【判断题】泛音越多，人声听起来越圆润。
A.
正确
B.
错误
【判断题】练习泛音时一般食指在四徽练习。
A.
正确
B.
错误
【判断题】乐器和自然界里所有的音都有泛音。()
A.
正确
B.
错误