患者李某固定义齿戴牙后基牙疼痛,原因不可能的是()
A.咬合力太大
B.底层冠和基牙不密合
C.故位体边缘设计90°肩台
D.基牙和邻牙接触太紧
E.基牙支持力不足
参考答案:C
The boat is ________ small, we can’t put _______ food in it.
A.much too; so many
B.much too; too much
C.too much; much too
D.too much; so much
一中年女性,颈部肿大。超声显示:甲状腺不规则、非对称性肿大,实质回声增粗,内见多个结节,结节边界欠清晰,有的内部可见液性暗区,CDFI:血流丰富,粗大迂曲的分支血管在结节间穿行、绕行。最可能的诊断是()
A.甲状腺腺瘤
B.甲状腺癌
C.结节性甲状腺肿
D.桥本病
E.毒性甲状腺肿