The sound [w]is aA．voiced alveolar lateral.B．voiceless palatal affricate.C．voiced bilabial

If the air stream meets with no obstruction when a sound is pronounced, it is a（n)A．voiced

______ is the common factor of the three sounds: [p], [t], [k].A．VoicelessB．VowelsC．Voiced

The sound [f]isA．voiced palatal affricate.B．voiced alveolar stop.C．voiceless velar fricati

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

One of the most authoritative(权威的) voices speaking to us today is of course the voice

The sounds produced without the vocal cords vibrating are ______ sounds.A.voicelessB.voice