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搜题
【单选题】
累加器A的作用是什么?A.
向ALU输入数据并存储结果
B.
帮助寄存器B完成算数运算
C.
帮助寄存器B完成逻辑运算
D.
独立工作
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参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】计算机网络是由网络硬件和网络软件两大部分组成，下列各项不属于网络硬件的是哪一个？
A.
交换机（Switch）
B.
服务器（Server）
C.
路由器（Router)
D.
传输控制/网际互联协议（TCP/IP）
【单选题】28 The Cost Performance Index (CPI) measures
A.
total costs
B.
performance over a period of time
C.
costs at a point of time
D.
variable costs
E.
All of the above
【单选题】Unlike most Europeans, many Americans bacon and eggs for breakfast every day.
A.
used to eating
B.
are used to eating
C.
are used to eat
D.
used to eat
【简答题】performance guarantee(performance bond、performance security)
【单选题】关于依赖心理,下列说法错误的是( )
A.
严重的依赖心理对疾病是不利的
B.
依赖可使人变得意志力坚强
C.
依赖使人变得犹豫不决
D.
照护者应尽量发挥患者的积极主动性
E.
不能姑息迁就患者的依赖心理
【单选题】A: The performance is terrific, isn't it? B: _______.
A.
I've never seen anything like this
B.
Well, maybe
C.
Probably
D.
But I didn't get it
【单选题】Unlike jetlag travelers, shift workers don’t have _______.
A.
impaired performance and ability to function
B.
reduced sleep quality and quantity
C.
adaption to time zone changes
D.
poor health problems
【单选题】Unlike performance testing, safety testing is a __________ process.
A.
voluntary
B.
official
C.
mandatory
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