题目内容
If similar sounds that occur in the same environments are two distinctive phonemes, they are said to form ______.
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______ are produced by moving from one vowel position to another through intervening positions.
Of the three branches of phonetics, the longest established, and until recently the most highly developed, is ______.
The consonant [f] in English can be correctly described as having the following phonetic features: ______.
In linguistics, ______ is focused on that how a speaker uses his speech organs to articulate the sounds.
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