根尖孔大多位于牙根（）
A.根尖顶
B.根尖唇侧
C.根尖舌侧
D.根尖近中侧
E.根尖远中侧
参考答案：A
An analyst gathered the following information for a company whose common stock is currently priced at $40 per share:（）
A．26.5
B．1.16
C．25.6
甲型肝炎病毒污染过的餐饮具消毒时应首选（）
A.开窗通风
B.消毒剂浸泡
C.煮沸
D.消毒剂喷洒
