下颌人工尖牙排列位置错误的是()
A.颈部向远中倾斜
B.牙颈部向后侧突出
C.牙尖略向舌侧倾斜
D.牙尖在牙合平面上
E.远中唇面向舌侧扭转
参考答案:B
The biggest room in this building _____ used as a meeting room. [ ]
A. used to
B. is used to
C. used to be
D. is used to be
青蛇毒的病机为:()
A.气血瘀滞,脉络滞塞不通
B.气血两虚,脾胃不和
C.湿热下注
D.营卫不和
E.以上都不是