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【单选题】
患者女，32岁，牙龈肿物3个月，镜下见病变由大量新生血管及成纤维细胞组成，有多数炎症细胞浸润，表面上皮变薄。病理上最符合A.
纤维性龈瘤
B.
血管性龈瘤
C.
青春期龈炎
D.
先天性龈瘤
E.
巨细胞性龈瘤
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举一反三
【单选题】You’d better get up as soon as the alarm clock .
A.
goes off
B.
turns off
C.
takes off
D.
gets off
【单选题】The thieves ran away as soon as the alarm _____.
A.
gave off
B.
put off
C.
showed off
D.
went off
【单选题】He got up quickly as soon as the alarm clock _______.
A.
went on
B.
went out
C.
went up
D.
went off
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