以下是冠修复后出现食物嵌塞的主要原因,无关的是
A.邻接不良B.冠边缘位于龈上C.咬合形态不良D.咬合平面与邻牙不一致E.对颌牙有充填式牙尖
参考答案:B
在操作电动弯管时,应注意手和衣服不得靠近旋转的轮胎。
The belief is the legendary lost continent of Atlantis may someday be found.
A.It is believed that
B.It is believing that
C.The belief that
D.That belief is