Werefertothelimitedrangeofsoundsasthephonicmediumoflanguageandindividualsoundswithinthatrangeas______.
A、vowelsD
在語言交際中占有一席之地、由人類的發音器官所發出來的聲音在數量上是有限的。這些范圍有限,但對人類交際活動意義重大、對語言學研究價值不菲的聲音就是語言的音響媒介,凡是在這個范 圍內的每個單個的聲音都叫做語音。
Theothertimingsystembelongsinourinternalclocks,which,left________,wouldtiethebodytoa25-hourrhythm.
Itisnotdecided________theconferencewillbeheld.
Theengineer______myfatherworksisabout50yearsold.
Iwaswritingareportlastnight;________Iwouldnothavestayeduplate.
Lyingundertheskull,thehumanbraincontainsanaverageoftenbillionnervecellscalled______.