问题
选择题
He is _______ outgoing boy. We all like him.[ ]
A. a
B. an
C. the
D. /
答案
答案：B
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He is _______ outgoing boy. We all like him.[ ]
A. a
B. an
C. the
D. /
答案：B
，健康，近中舌侧倾斜，牙槽嵴丰满，上颌散在骨尖。颌间距离正常