复合树脂充填后脱落的原因不包括（）
A.制备了固位形
B.牙齿表面未注意清洁
C.酸蚀后的牙面接触唾液
D.未制备洞斜面
E.充填体过薄
参考答案：A
肠内营养的输入，下列哪一项不正确（）。
A.开始时用往往采用低浓度
B.适应后可逐渐增加浓度
C.可以50ml/h的速度输入
D.可分数次集中快速推注
E.适应后每天用量可达1500～2000ml
Little _ that we were watching his every move, so he seemed to be going his own way in this
business: [ ]
A. he realized
B. he didn't realize
C. didn't he realize
D. did he realize
