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【单选题】

多任务处理大多采用并发方式,关于这种方式叙述错误的是______。

A.
所有任务都能够占用CPU
B.
任务之间切换比较容易
C.
前台程序运行会受影响
D.
系统对用户命令响应速度会变慢
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参考答案:
举一反三

【单选题】49() A. Talking on a cell phone while driving brings you joy anyway. B. The estimate is based on surveys with office workers. C. The younger group did 10 percent better when not interrupted. D. Howeve...

A.
A Bad Idea
B.
Think you can walk, drive, take phone, calls, e-mail and listen to music at the same time Well, New York’s new law says you can’t (46) The law went into force last month, following research and a shocking number of accidents that involved people using electronic gadgets(小巧机械)when crossing the street.
C.
Who’s to blame (47) "We are under the impression that our brain can do more than it often can," says Rene Marois, a neuroscientist(神经科学家)in Tennessee. "But a core limitation is the inability to concentrate on two things at once."
D.
The young people are often considered the great multitaskers. (48) A group of 18- to 21-year-olds and a group of 35-to 39-year-olds were given 90 seconds to translate images into numbers, using a simple code. (49) But when both groups were interrupted by a Phone call or an instant message, the older group matched the younger group in speed and accuracy.
E.
It is difficult to measure the productivity lost by multitaskers. But it is probably a lot. Jonathan Spira, chief analyst at Basex, a business-research firm, estimates the cost of interruptions to the American economy at nearly $ 650 billion a year. (50) The surveys conclude that 28 percent of the workers’ time was spent on interruptions and recovery time before they returned to their main tasks.

【多选题】展卖这种方式的优点主要表现在以下几方面。( )

A.
有利于宣传出口商品,扩大影响,招揽潜在买主,促进交易
B.
有利于建立和发展客户关系,扩大销售地区和范围
C.
有利于开展市场调研,听到消费者的意见,改进产品质量,增加出口竞争力
D.
有利于增加销售的可靠性

【单选题】下列关于Windows操作系统中任务处理的叙述中正确的是( )。

A.
从微观上看,前台任务和后台任务能同时得到CPU响应
B.
由于CPU中有多个执行部件,可同时执行多条指令,所以才能同时执行多个任务
C.
用户如果只启动一个应用程序,则该程序就可以自始至终独占CPU资源
D.
Windows操作系统在执行32位应用程序时,采用的是按时间片轮流的调度方法

【单选题】48() A. Talking on a cell phone while driving brings you joy anyway. B. The estimate is based on surveys with office workers. C. The younger group did 10 percent better when not interrupted. D. Howeve...

A.
A Bad Idea
B.
Think you can walk, drive, take phone, calls, e-mail and listen to music at the same time Well, New York’s new law says you can’t (46) The law went into force last month, following research and a shocking number of accidents that involved people using electronic gadgets(小巧机械)when crossing the street.
C.
Who’s to blame (47) "We are under the impression that our brain can do more than it often can," says Rene Marois, a neuroscientist(神经科学家)in Tennessee. "But a core limitation is the inability to concentrate on two things at once."
D.
The young people are often considered the great multitaskers. (48) A group of 18- to 21-year-olds and a group of 35-to 39-year-olds were given 90 seconds to translate images into numbers, using a simple code. (49) But when both groups were interrupted by a Phone call or an instant message, the older group matched the younger group in speed and accuracy.
E.
It is difficult to measure the productivity lost by multitaskers. But it is probably a lot. Jonathan Spira, chief analyst at Basex, a business-research firm, estimates the cost of interruptions to the American economy at nearly $ 650 billion a year. (50) The surveys conclude that 28 percent of the workers’ time was spent on interruptions and recovery time before they returned to their main tasks.
相关题目:
【单选题】经验较少的工人往往通过“边干边学”来获取新的技能,这种方式是( )。
A.
正规的在职培训
B.
正规的学徒计划
C.
非正式在职培训
D.
非在职培训
【单选题】49() A. Talking on a cell phone while driving brings you joy anyway. B. The estimate is based on surveys with office workers. C. The younger group did 10 percent better when not interrupted. D. Howeve...
A.
A Bad Idea
B.
Think you can walk, drive, take phone, calls, e-mail and listen to music at the same time Well, New York’s new law says you can’t (46) The law went into force last month, following research and a shocking number of accidents that involved people using electronic gadgets(小巧机械)when crossing the street.
C.
Who’s to blame (47) "We are under the impression that our brain can do more than it often can," says Rene Marois, a neuroscientist(神经科学家)in Tennessee. "But a core limitation is the inability to concentrate on two things at once."
D.
The young people are often considered the great multitaskers. (48) A group of 18- to 21-year-olds and a group of 35-to 39-year-olds were given 90 seconds to translate images into numbers, using a simple code. (49) But when both groups were interrupted by a Phone call or an instant message, the older group matched the younger group in speed and accuracy.
E.
It is difficult to measure the productivity lost by multitaskers. But it is probably a lot. Jonathan Spira, chief analyst at Basex, a business-research firm, estimates the cost of interruptions to the American economy at nearly $ 650 billion a year. (50) The surveys conclude that 28 percent of the workers’ time was spent on interruptions and recovery time before they returned to their main tasks.
【多选题】展卖这种方式的优点主要表现在以下几方面。( )
A.
有利于宣传出口商品,扩大影响,招揽潜在买主,促进交易
B.
有利于建立和发展客户关系,扩大销售地区和范围
C.
有利于开展市场调研,听到消费者的意见,改进产品质量,增加出口竞争力
D.
有利于增加销售的可靠性
【单选题】下列关于Windows操作系统中任务处理的叙述中正确的是( )。
A.
从微观上看,前台任务和后台任务能同时得到CPU响应
B.
由于CPU中有多个执行部件,可同时执行多条指令,所以才能同时执行多个任务
C.
用户如果只启动一个应用程序,则该程序就可以自始至终独占CPU资源
D.
Windows操作系统在执行32位应用程序时,采用的是按时间片轮流的调度方法
【单选题】48() A. Talking on a cell phone while driving brings you joy anyway. B. The estimate is based on surveys with office workers. C. The younger group did 10 percent better when not interrupted. D. Howeve...
A.
A Bad Idea
B.
Think you can walk, drive, take phone, calls, e-mail and listen to music at the same time Well, New York’s new law says you can’t (46) The law went into force last month, following research and a shocking number of accidents that involved people using electronic gadgets(小巧机械)when crossing the street.
C.
Who’s to blame (47) "We are under the impression that our brain can do more than it often can," says Rene Marois, a neuroscientist(神经科学家)in Tennessee. "But a core limitation is the inability to concentrate on two things at once."
D.
The young people are often considered the great multitaskers. (48) A group of 18- to 21-year-olds and a group of 35-to 39-year-olds were given 90 seconds to translate images into numbers, using a simple code. (49) But when both groups were interrupted by a Phone call or an instant message, the older group matched the younger group in speed and accuracy.
E.
It is difficult to measure the productivity lost by multitaskers. But it is probably a lot. Jonathan Spira, chief analyst at Basex, a business-research firm, estimates the cost of interruptions to the American economy at nearly $ 650 billion a year. (50) The surveys conclude that 28 percent of the workers’ time was spent on interruptions and recovery time before they returned to their main tasks.
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