题目内容

下列关于ANUG的主要临床表现，说法错误的是

A. 主要特征性损害为龈乳头和边缘龈的坏死
B. 病程较短，一般为数天至1～2周
C. 病变往往仅累及附着龈
D. 疼痛明显
E. 有腐败性口臭

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