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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 featureunrounded"is usually omitted because all front vowels in English are unrounded () .
A . Io
B . /e
C./elD ./
A . Io
B . /e
C./elD ./
参考答案
