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【单选题】
下列有关框架中的连接说法错误的是()。
A.
的连接可分为柔性连接、刚性连接和半刚性连接三类
B.
一种连接若能承受理想刚接弯矩的90%以上时,则可以认为是刚性连接
C.
一种连接若能承受理想刚接弯矩的20%以下时,则可以认为是柔性连接
D.
半刚性连接由于其承担的弯矩值在设计时很难确定,故应用广泛
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【判断题】制定餐饮产品的价格既要相对灵活,又要相对稳定,每次调价幅度不能过大,最好不超过15%。( )
A.
正确
B.
错误
【单选题】异同步清除计数器是指(    )的计数器。
A.
具有清除功能的同步型
B.
具有清除功能的异步型
C.
清除信号与时钟信号同时有效才能清除的
D.
清除信号与时钟信号无关的
【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】异步计数器是指( )的计数器。
A.
由不同类型的触发器构成
B.
各触发器时钟端连在一起,统一由系统时钟控制
C.
各级触发器状态的变化不是同时发生的
D.
触发器输出信号仅仅取决于存储电路的状态
【单选题】同步清除计数器是指( )的计数器
A.
具有清除功能的同步型
B.
具有清除功能的异步型
C.
清除信号与时钟信号同时有效才能清除的
D.
清除信号与时钟信号无关的
【判断题】异步计数器是指各个触发器状态变换的时间先后不一。
A.
正确
B.
错误
【判断题】异步计数器就是指各触发器状态翻转用不同时钟脉冲控制的计数器。( )
A.
正确
B.
错误
【单选题】From the abstract, what is the result 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.
【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.
【单选题】同步清除计数器是指(    )的计数器。
A.
具有清除功能的同步型
B.
具有清除功能的异步型
C.
清除信号与时钟信号同时有效才能清除
D.
清除信号与时钟信号无关
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