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【单选题】
熔断器型号RC1A-15/5中的15表示()。
A.
设计代号
B.
熔断器额定电流
C.
熔断器额定电压
D.
熔体额定电流
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参考答案:
举一反三
【单选题】味甘气香,能杀虫消积,尤宜用于小儿蛔虫病及小儿疳积的药物是:
A.
使君子
B.
苦楝皮
C.
榧子
D.
鹤草芽
E.
贯众
【多选题】How does S-Cdk initiate DNA replication and block re-replication?
A.
Like any monumental task, configuring chromosomes for replication requires a certain amount of preparation. For eukaryotic cells, this preparation begins early in G 1 , when DNA is made replication-ready by the recruitment of proteins to the sites along each chromosome where replication will begin. These nucleotide sequences, called origins of replication, serve as landing pads for the proteins and protein complexes that control and carry out DNA synthesis.
B.
One of these protein complexes, called the origin recognition complex (ORC), remains perched on the replication origins throughout the cell cycle. To prepare the DNA for replication, the ORC recruits a protein called Cdc6, whose concentration rises early in G 1 . Together, these proteins load the DNA helicases that will ultimately open up the double helix at the origin of replication. Once this prereplicative complex is in place, the replication origin is loaded and ready to “fire.”
【单选题】列族数据库创建表时_________________
A.
必须创建列,不必创建列族
B.
必须创建列族,不必创建列
C.
列族和列都要创建
D.
列族和列都不必创建
【单选题】HBase的每个列族均对应了一个()属性。
A.
列名
B.
行键
C.
时间戳
D.
列键
【单选题】电视连续剧《隋唐英雄传》以南北朝后期到唐太宗李世民即位这一时期为历史背景,演绎了隋末唐初出现的著名英雄人物。在这部电视剧中,我们不能看到的情景是
A.
北周外戚杨坚称帝,建立隋朝
B.
李世民 618 年即位,改年号为 “ 贞观 ”
C.
隋炀帝统治残暴,被叛军杀死
D.
李渊称帝,建立唐朝,他就是唐高祖
【简答题】复制(replication)
【单选题】对留置导尿老年人的观察要点包括( )
A.
注意观察尿液的性状、颜色、尿量
B.
保持导尿管通畅,避免受压、扭曲、返折、阻塞等异常情况
C.
观察尿管有无脱出,漏尿
D.
观察留置尿管接触部位的皮肤情况
E.
以上都对
【单选题】( )是Bigtable中访问控制的基本单元
A.
B.
C.
列族
D.
子表
【简答题】θ replication model
【多选题】Characteristics of DNA replication contain
A.
semi-conservative replication
B.
semi-discontinuous replication
C.
bi-directional replication
D.
RNA primer required
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