题目内容
甲型血友病的基因缺陷是
2021-12-31
A.凝血因子Ⅷ基因片段缺失，点突变或插入
B.凝血因子Ⅸ基因片段缺失，点突变或插入
C.PAH的严重缺乏
D.CK的水平升高
E.凝血因子Ⅹ基因片段缺失
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