下列哪种情况不可能设计单端固定桥（）
A.尖牙缺失
B.修复前牙小间隙
C.上颌侧切牙缺失
D.第一、二磨牙缺失
E.第二、三磨牙缺失
参考答案：D
(1)________Weather determined the crops.
(2)________We determined on an early start.
(3)_________He was determined to win the game.
(4)_____What determined her to marry him?
(5)_________His mother is a determined woman who always gets what she wants._________
He is a man of great determination.
多见于小儿，引起鼻部呼吸受阻，可行手术刮除的是（）。
A.先于性后鼻孔闭锁
B.咽异感症
C.鼻咽纤维血管瘤
D.鼻咽癌
E.腺样体肥大
