哪一种修复体主要依靠箱状洞形固位()
A.半冠
B.嵌体
C.锤造全冠
D.铸造金属全冠
E.3/4冠
参考答案:B
解析:
嵌体主要依靠箱状洞形固位。
Fully ______ in looking after three children at home, she no longer has time to enjoy the various
activities in the club. [ ]
A. occupied
B. contributed
C. attached
D. devoted
眼深在2米以下的光面爆破,周边眼装药结构宜采用()。
A.无空气段装药
B.单空气段装药
C.反向装药