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搜题
【单选题】
催化原核tRNA转录的酶是A.
RNA聚合酶
B.
DNA聚合酶
C.
RNA聚合酶Ⅱ
D.
RNA聚合酶Ⅲ
E.
DNA聚合酶Ⅰ
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反馈参考答案：
举一反三
【简答题】What are the two disadvantages associated with database systems?
【多选题】What are some problems with using traditional relational database management systems?
A.
Software licensing
B.
Provisioning the database for periods of high demand, but then rarely having high demand
C.
Planning ahead for how the database will be used in the future
D.
Providing enough access to the database during peak demand times
【多选题】What are some problems with using traditional relational database management systems?
A.
Software licensing
B.
Providing enough access to the database during peak demand times
C.
Planning ahead for how the database will be used in the future
D.
Provisioning the database for periods of high demand, but then rarely having high demand
【简答题】Database is similar to a data file in that it is a storage place for data. Like a data file, a database does not present information directly to a user; the user runs an application which accesses dat...
【判断题】MMDBMSs are not able to support the ACID properties known from conventional database systems.
A.
正确
B.
错误
【单选题】All systems are composed of interrelated:
A.
subsystems.
B.
enterprise systems.
C.
database systems.
D.
design systems.
【简答题】作业1:创建一个单页210*297mm的文档,要求文档上下边距25mm,左右边距15mm,分栏3栏,栏间距5mm,出血线3mm,对页显示。 作业2:创建一个 210*297mm 的三折页文档,要求创建正反两面。注意:学生自己计算并设置297mm做三折页横边每页的宽度。 以上两个作业均拍照至答案处,照片中要出现自己的手指或某一物品。 例如:
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