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（）s are sounds produced without obstruction, so no turbulence or a total stopping of the air can be perceived.
（）s are sounds produced without obstruction, so no turbulence or a total stopping of the air can be perceived.
正确答案：Vowel
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英语语言学概论
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（）can be differentiated by a number of factors: the position of tongue in the mouth, the openness of the mouth, the shape of the lips, and the length of the vowels.
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Which of the following sounds is a palatal?