题目内容

浆细胞龈炎

A. 牙龈增生常覆盖牙冠的2/3以上
B. 牙龈乳头红肿
C. 牙龈线性红斑
D. 牙龈鲜红肿大，松软脆弱，表面呈结节或分叶状
E. 龈乳头和边缘龈的坏死
F. 下列疾病牙龈的特征病损是

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