Tom is a good boy. He's , too. [ ]
A. good look
B. handsome
C. pretty
D. beautiful
答案:B
PC活髓切断术牙髓的组织变化为()
A.根髓固定纤维化
B.根管口形成硬组织桥
C.牙髓钙变
D.牙髓活力正常
E.根管内壁吸收
弹响指发病频度最多的手指是
A.拇指、示指B.示指、中指C.中指、环指D.环指、小指E.拇指、小指