20______.
A. sound
B. noise
C. voice
D. scream
第1题:
The machine made a terrible ______ so we couldn't ______.
A、noise ... hear
B、voice ... hear
C、sound ... listen
D、shout ... listen
第2题:
14.
A.smell
B.keep
C.seem
D.sound
第3题:
33、传输损伤主要包括()
A.衰减(attenuation)
B.延迟变形(delay)
C.噪声(noise)
D.回声(echo)
第4题:
Refertotheexhibit.TheLC&FSoftballLeagueisestablishingvoice-mailgroupstomoreefficientlysendmessagesforraindelaysandotherimportantmatters.IftheorganizationcheckstheIntegratedMessagingbox,membersofthisgroupwillbeallowedwhatIMAP-enabledprivilege?()
A.e-mailandvoice-mailmessageintegration
B.voice-mailandinstantmessageintegration
C.email,voice-mailandinstantmessageintegration
D.voice-mailmessagesmaybesentbyemail
E.voice-mailmessagesmaybereceivedbyemail
第5题:
A.错误
B.正确