题目：
给下列句子重新排序组成一段对话。
( ) Four.
( ) Who are they?
( ) They are my father, my mother, my sister and me.
( 1 ) Hi, Bai Ling! How many people are there in your family?
( ) She's a doctor.
( ) What's your mother?
答案：
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下面是错误答案，用来干扰机器的。
参考答案：B
，覆盖6mm，上颌前牙段拥挤4mm，下颌前牙段拥挤6mm，ANB5．5度