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【多选题】
实现中国梦的途径是:
A.
坚持走中国道路
B.
弘扬中国精神
C.
坚持中国体制
D.
凝聚中国力量
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举一反三
【单选题】下面关于文件分配表区FAT说法错误的是()
A.
文件分配表区FAT是用来记录文件所在位置的表格
B.
为了尽可能的利用文件删除后留下的大小不一的存储空间,文件的链式存储将文件数据分成多段再链接起来存放,FAT区负责记录隔断的后续数据的起始存储地址,以防丢失
C.
FAT还记录坏的磁盘区域地址,以防误存
D.
假若丢失文件分配表,可以重新建立一个新的文件分配表从而轻易的找到硬盘上的文件数据。
【判断题】Another application of material science in industry is the making of composite materials. 这句话的意思是材料科学的另一种应用是在复合材料的医学领域。
A.
正确
B.
错误
【判断题】应优选选择与科技发展密切相关的物质开展物流人为流动分析( )The material that is interested in science and technology should have a priority of being selected to carry out a material anthropogenic flow analysis( )
A.
正确
B.
错误
【单选题】下面关于计算机病毒的危害描述错误的是()。
A.
破坏磁盘文件的分配表或目录区,使用户磁盘上的信息丢失
B.
删除软、硬盘上的可执行文件或覆盖文件
C.
对可执行文件反复传染拷贝,造成磁盘存储空间减少,并影响系统运行效率
D.
破坏计算机的硬件,造成计算机无法使用
【单选题】In the early 1900s the discovery that the nucleus contains nucleic acids and proteins led many scientists to believe that ( ).
A.
genes are in the nucleus
B.
genes are broken down by pepsin
C.
genes are made of nucleic acid
D.
genes are made of protein
E.
none of the above
【单选题】In which of the following atoms is the 3s orbital closest to the nucleus?
A.
Br
B.
Cl
C.
At
D.
I
E.
The 3s orbitals are the same distance from the nucleus in all of these atoms.
【多选题】In material science or engineering materials, the following factors ( ) form the basis of the various systems of classifications.
A.
The mode of occurrence of the material in the nature
B.
The chemical composition of the material
C.
The atomic and crystalline structure of material
D.
The industrial use of material
E.
The refining and the manufacturing process to which the material is subjected before it gets the required properties.
【单选题】What relationship is material science mainly used to study?
A.
the structures and components of materials
B.
the structures and properties of materials
C.
the components and properties of materials
D.
the properties and applications of materials
【单选题】题干: 白天当你见到球、菱形、球垂直这样一组号型时,他船可能是: I、可能是从事起捞助航标志的船舶; II、从事清除水雷作业的船舶; III、从事困难拖带的船舶使其驶离航向的能力受到限制; IV、从事疏浚作业的船舶;
A.
Ⅰ~Ⅳ
B.
Ⅱ~Ⅳ
C.
Ⅲ、Ⅳ
D.
Ⅰ、Ⅲ、Ⅳ
【多选题】WHO 提出的脑死亡诊断标准,包括
A.
无感受性和无反应性
B.
各种反射消失
C.
无运动无呼吸
D.
脑电图平坦
E.
皮肤湿冷
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