上颌中切牙牙冠唇面形态中哪一点是错误的
A．梯形
B．牙合龈径小于近远中径
C．近中切角似直角
D．远中切角圆钝
E．切1/3有两条发育沟
参考答案：B
水试压时，试验压力为操作压力（）
A、1.1倍
B、1.2倍
C、1.5倍
An analyst does research about accrual accounting. A retail store in a shopping mall often pays its rent in advance. The originating entry to account for the rent most lilcely reduces cash and records a(n):（）
A. asset.
B. liability.
C. expense.
