我国公安机关的专政职能是专门用以对付敌对势力、敌对分子和严重刑事犯罪分子的。（）
参考答案：对
患者女，35岁，过敏体质，缺失，余留牙正常，拟采用可摘局部义齿修复
这种患者如果需要行全冠修复，不能采用以下哪种全冠（）
A.全瓷冠
B.纯金铸造冠
C.镍铬合金烤瓷冠
D.金钯合金烤瓷冠
E.金铂合金烤瓷冠
He is walking unsteadily as if he _______drunk. You’d better support him so that he won’t fall over his
own feet. [ ]
A. were
B. was
C. is
D. has been
缺失，余留牙正常，拟采用可摘局部义齿修复
g unsteadily as if he _______drunk. You’d better support him so that he won’t fall over his