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【单选题】
操作系统中采用多道程序设计技术提高了CPU和外部设备的()
A.
利用率
B.
可靠性
C.
稳定性
D.
兼容性
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【简答题】半自动化人机系统:
【简答题】The ways in which ordinary people can see the global climate is changing.
【简答题】四个连续奇数的和是32,这四个连续奇数的积是多少?
【单选题】星空中最明显的运动--恒星的周日视运动,是由什么造成的?
A.
地球的自转
B.
地球绕太阳的公转
C.
恒星的运动
D.
太阳系的运动
【单选题】按系统自动化程度分类,人机系统有( )、人工操作系统和半自动化系统。
A.
人机混合系统
B.
人机串联系统
C.
自动化系统
D.
机与机并联系统
【简答题】两个连续奇数的积是143,求这两个连续奇数.
【单选题】人机系统可分为机械化、半机械化的人机系统和全自动化控制的人机系统两类。在机械化、半机械化的人机系统中,人始终起着核心和主导作用,机械起着安全保证作用。下列关于机械化、半机械化的人机系统的说法中,正确的是( )。
A.
系统的安全性主要取决于人处于低负荷时应急反应变差
B.
系统的安全性取决于机械的冗余系统是否失灵
C.
机械的正常运转依赖于该闭环系统机器自身的控制
D.
系统的安全性主要取决于该系统人机功能分配的合理性
【单选题】Which of the following statements is NOT true about the Democrats' idea of the global economy?
A.
Bill Clinton was in favor of the global economy.
B.
A large number of Democrats fear globalization and technological change.
C.
Democratic leaders agree with Bill Clinton on the idea of the global economy.
D.
Free trade with Central America will meet with opposition from many Democrats.
【单选题】Checks and balances systemChecks and balances system was based on division of powers. Congress is the Legislative branch. It consists of two chambers: the Senate and the House of Representatives.The E...
A.
Congress consists of two chambers: the Senate and the House of Representatives.
B.
Three branches are completely isolated from one another.
C.
The Judicial branch is composed of the Supreme Court and 11 court of appeals.
D.
The President can not veto the bill.
【单选题】— Is it _____ the bad smell that is difficult ? — Of course. A. B.
A.
how getting rid of
B.
got rid of
C.
to get rid of
D.
being got rid of
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