职称英语考试理工类阅读理解练习题(3)

　　Computers 　　a can draw on computer-based information systems to control activities in every area of their company. On any kinds of performance measures, the information provided by these systems helps managers compare standards with actual results, find out problems, and take corrective action before it is too late to make changes. 　　Now, there are about 24 million microcomputers in use in the United States - one for every 10 citizens. It is estimated that by 1996, 61 percent of American managers will be using some sort of electronic work station. In order for managers to be sure that the computer-based information they are receiving is accurate, they need to understand how computers work. However, in most cases they do not need to learn how to program computers. Rather, managers should understand how computerized information systems work; how they are developed; their limitations and costs; and the manner in which information systems may be used. Such an understanding is not difficult to achieve. 　　1. Equipped with computers, managers today operate their firms with higher efficiency and less cost than they used to be. 　　B. Wrong 　　2. Today, financial controls are still exercised in some minor areas such as billing and vocational training. 　　B. Wrong 　　3. It is unnecessary for a neighborhood baker to use a computer in his shop. 　　B. Wrong 　　4. At present about 　　A. Right 　　C. Not mentioned 　　A. Right 　　C. Not mentioned 　　A. Right 　　C. Not mentioned 　　A. Right 　　C. Not mentionedABBABCA