简述MAC（Minimal alveolar concentration）。
简述MAC（Minimal alveolar concentration）。
相关考题：
Which of the following is the correct description of the English sound ／k／ A voiceless,velar,stopB voiced,velar,stopC voiceless,alveolar,stopD voiced,alveolar,stop
______of the following conditions will cause a vessel’s bottom to be subjected to tension stresses.A.Concentration of weight aftB.Concentration of weight forwardC.Concentration of weight amidshipsD.Concentration of weight at both ends of the vessel
The sound of "ch" in "teacher" is（ ）.A.voiceless, post-alveolar, and affricativeB.voiceless, dental, and fricativeC.voiced, dental, and fricativeD.voiced, post-alveolar, and plosive
Which of the following correctly describes the English phoneme/d/?_________A．A voiced dental fricative.B．A voiced alveolar fricative.C．A voiceless dental plosive.D．A voiceless alveolar fricative.
Which of the following correctly describes the English phoneme/θ/A.A voiceless dental fricative.B.A voiceless alveolar fricative.C.A voiceless dental plosive.D.A voiceless alveolar plosive.
单选题Which of the following description of the sound segments is NOT correct? _____A[m]bilabial nasalB[j]alveolar approximantC[h]glottal fricativeD[l]alveolar lateral
单选题Which of the following correctly describes the English phoneme/tʃ/？AA voiceless alveolar fricative.BA voiceless post-alveolar affricate.CA voiced palatal affricate.DA voiced alveolar fricative.
单选题Which of the following correctly describes the English phoneme/θ/?AA voiceless dental fricativeBA voiceless alveolar fricativeCA voiceless dental plosiveDA voiceless alveolar plosive
单选题_____ refers to the obstruction of the air stream caused by the tongue tip or blade and the alveolar ridge, such as in the production of [t].AStopBDentalCAlveolarDGlide
单选题The sound ofchin teacheris_________.Avoiceless, post-alveolar, and affricativeBvoiceless, dental, and fricativeCvoiced, dental, and fricativeDvoiced, post-alveolar, and plosive