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题目内容
（伊犁师范-英语语音）
The vowel () can be described as low, front, and unrounded, but the feature"unroundedis usually omitted because all front vowels in English are unrounded.
A /e/
B.//
C . IoD .6/
A /e/
B.//
C . IoD .6/
参考答案