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● 依曼体系结构的计算机有两个主要组成部件:内存和处理器。其中,内存用于存储指令和数据。在大多数高级语言, (7) 是内存单元的抽象。微处理器中的 ALU可执行算术运算和 (8) 操作。 (7) A. 变量 B. 关键字 C. 语句 D. 数据类型 (8) A. 浮点 B. 定点 C. 逻辑 D. 控制
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【单选题】Air pollution and the degradation of the environment can be regarded as:
A.
An inefficient production outcome
B.
A social cost
C.
A misallocation of resources
D.
An economic loss
【单选题】Under conditions of glucagon release, the degradation of liver glycogen normally produces which one of the following?
A.
More glucose than glucose 1-P
B.
More glucose 1-P than glucose
C.
Equal amounts of glucose and glucose 1-P
D.
Neither glucose nor glucose 1-P
E.
Only glucose 1-P
【简答题】CD-R光盘刻录机主要有四种刻录方式:______ 、轨道刻写、多段、增量式分组刻写。
【多选题】CD—R刻录机的速度指标有( )
A.
刻录速度
B.
擦写速度
C.
读取速度
D.
转速
【单选题】The real goal in security now is to retard the degradation of the halfl ives of secrets. Secrets are like isotopes.
A.
reduction of energy to a less readily convertible form
B.
wearing down and disintegrating of rock
C.
lowering the quality of something
【单选题】下列各组词语中的后一个音节都读轻声的一组是()。
A.
石榴、木头、爸爸、认识、明白
B.
先生、桌子、消息、老头、经过
C.
委屈、亲家、佩服、清楚、电子
D.
动弹、姐姐、高兴、美好、看过
【单选题】The degradation of amino acids can be classified into families, which are named after the end product of the degradative pathway. Which one of the following is such an end product?
A.
Citrate
B.
Glyceraldehyde 3-phosphate
C.
Fructose 6-phosphate
D.
Malate
E.
Succinyl-CoA
【简答题】视频监控系统一般设置有:_____、_____、录像机(或硬盘刻录机)、矩阵主机和画面处理器等。
【单选题】The use of big data can help scientists __________ not only the degradation of the environment but can be part of the solution to achieve sustainability, according to a new commentary paper.
A.
dock
B.
chart
C.
participate
D.
range
【判断题】目前市场上常用的有CD光盘刻录机和DVD光盘刻录机,包括CD-R刻录机、DVD-R刻录机、CD-RW、DVD-R/DVD+R、DVD-RW/DVD+RW、DVD-RAM等类型。
A.
正确
B.
错误
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