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【单选题】
关于牙龈瘤的叙述，哪错误的（ ）A.
女性多见，与内分泌有关
B.
破坏牙槽骨壁
C.
一般病变波及的牙齿拔除
D.
病变波及的骨膜及邻近骨组织需要去除
E.
因非真性肿瘤，切除后不易复发
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反馈参考答案：
举一反三
【简答题】She said she was glad the difficulty had been _____. A. cleared away B. cleared up C. broken away D. broken down
【单选题】Only then _____ how much damage had been caused. [ ]
A.
she realized
B.
she had realized
C.
had she realized
D.
did she realize
【单选题】关于胶原纤维的描述,错误的是
A.
纤维粗细不等，韧性大，抗拉力强
B.
HE染色标本上呈嗜酸性，染成粉红色
C.
新鲜时呈白色，又名白纤维
D.
化学成分为Ⅰ型和Ⅲ型胶原蛋白
E.
电镜下，由微原纤维黏合而成
【单选题】She was () because she had been put into a dorm that had people from a variety of ethnic backgrounds.
A.
restrained
B.
distressed
C.
crumble
D.
tumbled
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