题目内容
Whichbranch ofphonetics concerns theproduction ofspeech sounds?
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Whichvowel is differentfrom theothers according to thecharacteristics ofvowels?
__________ is one of the suprasgemental features.
Suprasegmental features are those aspects of speech that involve more than single sound segements.The principal suprasegmentals are _____________.
________ is a central vowel.
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