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更多“A properly designed internal control system is a key part of systems design, analysis, and performan…”相关的问题
A、Lowers the company's risk of loss.
B、Insures profitable operations.
C、Eliminates the need for an audit.
D、Requires the use of non-computerized systems.
E、Is not necessary if the company uses a computerized system.
61.(翻译，10分)It is admirable for an organization to want to measure customer satisfaction. However, to do so correctly, the entire measurement process must be properly designed and implemented from start to finish. Proper questionnaire design is just the first step in the process.
It would be very easy to attack the plutonium reprocessing plants because ______.
A．the plants are not properly safeguarded.
B．the local police are not efficient enough.
C．plutonium has been stolen before.
D．they were badly designed
The heart of an electronic computer lies in its vacuum tubes, or transistors. Its electronic circuits work a thousand times faster than the nerve cells in the human brain. A problem that might take a human being two years to solve can be solved by a computer in one minute, but in order to work properly, a computer must be given instructions--it must be programmed. Computers can be designed for many specialized purposes--they can be used to prepare payrolls, guide airplane flights, direct traffic, even to play chess. Computers play an essential role in modern automation in many plants and factories throughout the world.
A computer is a machine designed to ______.
A．perform. work mathematically
B．perform. complicated calculations
C．store and select information
D．all of the above
听力原文： A computer is a machine designed to perform. work mathematically and to store and select information that has been fed into it. It is run by either mechanical or electronic means. These machines can do a great deal of complicated work in a very short time. A large computer, for example, can add or subtract nine thousand times a second, multiply a thousand times a second, or divide five hundred times a second. Its percentage of error is about one in a billion digits. It has been estimated that human beings making calculations average about one mistake per two hundred digits.
The heart of an electronic computer lies in its vacuum tubes, or transistors. Its electronic circuits work a thousand times faster than the nerve cells in the human brain. A problem that might take a human being two years to solve can be solved by a computer in one minute, but in order to work properly, a computer must be given instructions--it must be programmed.
Computers can be designed for many specialized purposes--they can be used to prepare payrolls, guide airplane flights, direct traffic, even to play chess. Computers play an essential role in modern automation in many plants and factories throughout the world.
(33)
A．One in a billion digits.
B．Zero.
C．One mistake per two hundred digits.
D．One in a million digits.
Questions 1~5 are based on the following passage:London started its first major bike hire scheme on July 30th. Transport For London (TFL), the agency responsible for moving people around England’s capital, put 5,000 bicycles in 400 different locations around the city. The idea is to cut traffic, reduce pollution and provide a greener way of getting around London’s streets. The scheme had a few teething problems on its first day as people could not lock the bikes properly once they had finished riding them. As a gesture of goodwill, London Mayor Boris Johnson announced all rentals on the first day would be free of charge. The bikes are available for free for the first 30 minutes but costs go up steeply thereafter. Renters have to pay $1.60 for the first hour and $78 for 24 hours. The bikes are clearly designed for very short trips. TFL says it sees a “cycle revolution” happening in London. It predicts there will be around 40,000 new cycle journeys every day on the rental bikes. Mr Johnson says he wants to see a return to the turn of the 20th century, when 20 per cent of journeys in London were made by bicycle. The scheme has received a lot of positive feedback in the first two days. ManyLondoners believe it is a great alternative to London’s overcrowded and overpriced trains and buses. One commuter (远程上班族), Andy Clark, told the Reuters news agency: “It’s a great idea. I’ve seen it operating in Paris and Barcelona and thought why don’t we have one？” The Londonist Blog said the bikes were very sturdy and were “designed to withstand a beating from both careless cyclists and drunken vandal s （故意破坏公物者）”. London’s bike rental service is intended to ______. A．move people around free of charge B．ease traffic problems on the city ’s roads C．promote the bike sales in the city D．raise people ’s awareness of poll ution
Section B
Directions: There are 2 passages in this section. Each passage is followed by some questions or unfinished statements. For each of them there are four choices marked A, B, C and D. You should decide on the best choice.
An exercise program designed for younger adults may be inappropriate for older persons, particularly for persons over age 50. Special attention must be paid to matching the program to the interests and abilities of the participants. The goals of the program should include both social interaction and physical conditioning.
Older adults should take a physical examination before starting a fitness program. Included in this examination should be a stress cardiogram (心电图) , blood pressure check, and an evaluation of joint functioning. It is a good idea for participants to learn how to monitor their own cardiorespiratory (心肺的) status during exercise.
Well- designed fitness programs for older adults will have activities that begin slowly, are monitored frequently, and are geared to the enjoyment of the participants. The professional staff coordinating the program should be familiar with the signs of distress. Periods of warm- up and cool- down should be included. Activities to increase flexibility are beneficial in the beginning and ending parts of the program. Participants should wear comfortable clothing, appropriate shoes, and be mentally prepared to enjoy the activities to the fullest.
A program designed for older adults will largely conform. to the criteria of activity, intensity, duration, and frequency. The principal exception is in the intensity camp where the THR (Target Heart Rate) should not exceed 120 beats per minute. This level of intensity is approximately 40% to 50% of the maximum heart rate. Also, because of possible joint or muscular or skeletal problems, certain activities may have to be done in a sitting position. Pain and discomfort should be reported immediately to the fitness instructor.
Fortunately, properly screened adults will rarely have health emergencies during a well -monitored fitness program. Like their youthful counterparts, many older adults find fitness programs socially enjoyable, physically beneficial, and occasionally addictive.
According to the author,______.
A．older adults need more physical exercises than the younger ones
B．younger adults are not necessary to take a physical examination before a fitness program
C．fitness programs for older adults should be well -monitored
D．poorly - designed fitness programs for older adults will do serious harms to them
Section B
Directions: In this section, you will hear 3 short passages. At the end of each passage, you will hear some questions. Both the passage and the questions will be spoken only once. After you hear a question, you must choose the best answer from the four choices marked A, B, C and D.
听力原文： A computer is a machine designed to perform. work mathematically and to store and select information that has been fed into it. It is run by either mechanical or electronic means. These machines can do a great deal of complicated work in a very short time. A large computer, for example, can add or subtract nine thousand times a second, multiply a thousand times a second, or divide five hundred times a second. Its percentage of error is about one in a billion digits. It has been estimated that human beings making calculations average about one mistake per two hundred digits.
The heart of an electronic computer lies in its vacuum tubes, or transistors. Its electronic circuits work a thousand times faster than the nerve cells in the human brain. A problem that might take a human being two years to solve can be solved by a computer in one minute, but in order to do properly, a computer must be given instruction -- it must be programmed.
Computers cab be designed for many specialized purposes -- they can be used to prepare payrolls, guide airplane flights, direct traffic, even to play chess. Computers can play an essential role in modern automation in many places and factories throughout the world.
(27)
A．It works faster than human brain.
B．It seldom makes errors.
C．It can solve complicated problems.
D．It can "think" without information fed into it.
The truss is made up of metal crossbars and filled with wiring, pipes, computers and other equipment. It is to be attached to the station during four spacewalks by the seven-member crew. The astronauts will also attach a mobile transport platform. to tracks atop the truss, the first part of a 300-foot (100-meter) mini-railroad that will carry a robotic arm and crew members back and forth across the station on future construction and repair jobs.
Atlantis's 25th flight will be the first in the 21-year history of the shuttle program for which the National Aeronautics and Space Administration will delay announcing the precise launching time for a civilian mission. Citing heightened security since Sept. 11, the agency said that liftoff would occur between 2 and 6 p.m. and that it would not announce the official time until 24 hours before the flight.
Before launching, NASA must determine that he 58-foot Canadian - built robot arm attached to the station is operating properly, since it will be critical in installing the truss. The multijointed Canadarm 2, as it is called, was installed last April and has since experienced periodic problems. In some operations recently, the brake on one of the arm' s seven joints has not released properly, causing it to malfunction.
To work around the problem, Canadian engineers wrote new computer software to operate the arm with six joints. The three-member resident crew at the station is testing the new operating procedures for installing the truss. If the software patch fails, the mission could be delayed several days until the problems are worked out.
Adding the center truss element begins a new phase for the ＄ 60 billion station, a 16-nation project led by the United States in cooperation with Russia, Japan, Canada and members of the European Space Agency. Over the next two years, six other girder sections will be added to serve as the home for four giant solar power arrays, heat radiators and other equipment that must be in place before attaching science modules from other nations.
The "truss" is______.
A．a space shuttle that carries a support beam
B．a mobile transport platform
C．a framework designed to support devices
D．a laboratory
Hack
The first big-name hackers include Steve Wozniak, Bill Gates and Linus Torvalds, all now highly recognizable names behind many of the computer technologies used today. These early hackers had a love of technology and a compelling need to know how it all worked, and their goal was to push programs beyond what they were designed to do. Back then, the word “hacker” didn’t have the negative connotation it has today. The original hacker ethic, rooted out of simple curiosity and a need to be challenged, appears to be dead.
The objectives of early hackers are a far cry from the goals of today’s hacker. The motivation of the new breed of hackers appears not to be curiosity, or a hunger for knowledge, as it used to be. Instead, most of today’s hackers are driven by greed, power, revenge, or some other malicious intent, treating hacking as a game or sport, employing the tools that are readily available via the Internet.
The rate of security attacks is actually outpacing the growth of the Internet. This means that something besides the growth of the Internet is driving the rise in security attacks. Here are some realities you should know about: Operating systems and applications will never be secure. New vulnerabilities will be introduced into your environment every day. And even if you ever do get one operating system secure, there will be new operating systems with new vulnerabilities—phones, wireless devices, and network appliances. Employees will never keep up with security polices and awareness. It doesn’t matter bow much you train and educate your employees. If your employees disregard warnings about the hazards of opening questionable e-mail attachments, bow are you going to educate them about properly configuring firewalls and intrusion detection systems for their PCs？ Managers have more responsibility than ever. And on top of the realities listed above, security managers are being asked to support increasing degrees of network availability and access. There are some good security measures you can take: Employ a layer 7, full-inspection firewall. Automatically update your anti-virus at the gateway, server and client. Keep all of your systems and applications updated. Hackers commonly break into a Web site through known security holes, so make sure your servers and applications are patched and up to date. Turn off unnecessary network services. Eliminate all unneeded programs. Scan network for common backdoor services—Use intrusion detection systems, vulnerability scans, anti-virus protection.
Which of the following statements of Steve Wozniak, Bill Gates and Linus Torvalds is TRUE？
A．They are all good examples of today’s computer users.
B．They are driven by greed, power, revenge, or some other malicious intent.
C．Their goal is to push programs beyond what they are designed to do.
D．They are all dead.
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