皮皮学，免费搜题
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【单选题】
冠状动脉粥样硬化好发于A.
左冠状动脉前降支
B.
左冠状动脉旋支
C.
右冠状动脉主干
D.
左冠状动脉主干
E.
右冠状动脉旋支
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参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】具有同步置数功能计数器是指( )的计数器
A.
具有置数功能的计数器
B.
具有置数功能的异步型
C.
置数信号与时钟信号同时有效才能实现置数
D.
置数信号与时钟信号无关
【单选题】From the abstract, what is the conclusion of this article?
A.
Overall 10 publications with clinical trials could be identified. Their clinical outcome was compared with that laboratory bond strength studies.
B.
Clinical data provide strong evidence that air-abrasion at a moderate pressure in combination with using phosphate monomer containing primers and/or luting resins provide long-term durable bonding to glass-infiltrated alumina and zirconia ceramic under the humid and stressful oral conditions.
C.
As simple and clinically reliable bonding methods to oxide ceramics exist, the rationale for development of alternative bonding methods might be reconsidered especially when these methods are more time consuming or require rather complicated and/or technique sensitive procedures.
D.
Conducting a PubMed database search in May 2014 for articles dealing with the resin bond to dental zirconia ceramic reveals an astonishing increase of research being published in the last two decades years.
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