A) fix B) be fixed C) have fixed D) have been fixed
A) fix B) be fixed C) have fixed D) have been fixed
Biological Identification Technologies
When a person walks, the movement of his head, trunk, and limbs (肢体) are all reflected in changes in his body. A computer stores these __________ .(51) into a database (数据库). Later,the computer can accurately __________ (52) him according to these changes. This is a new biological identification __________ (53) and it can quickly identify an examinee without disturbing him.
Everybody&39;s voice is __________ (54).When a person&39;s voice is recorded by an instrument,his voice frequency spectrum (频谱) is called sound print. __________ .(55) a fingerprint,everybody&39;s sound print is different. How can a computer __________ (56)his sound? First, his voice is recorded, __________ .(57) allows the computer to become familiar with his voice. It will then turn his sound characteristics into a series of digits (数字). These are the __________ (58)
on which the computer can distinguish his voice from another&39;s.
We often bring ID cards, work cards, or driving licenses with us to __________(59) our identity. If all these cards are forgotten or lost. How can we prove whom we are? In __________(60), it&39;s not difficult to prove whom you are, __________(61) your body itself has identifying markers. Some are physiological (生理的) features, such as fingerprints, sounds, facial (面部) types and eye color. The computer can __________(62) to identify you. Suppose your features have already been __________(63)in the database. To identify you, we have to take your picture with a camera and send it to a computer for __________ (64). First, the computer needs to reposition this picture according to the position of your eyes, and then starts to read the __________(65) of your physiological features such as the ratio of your pupil to the whites of your eyes and the shape of your nose. Next, it seeks matching records from the database. Finally, it makes a decision.
_________ 查看材料
A.parts
B.changes
C.positions
D.directions
Yet you will find little if anything written on what it is to be an employee. You can find a great deal of very dubious advice on how to get a job or how to get a promotion. You can also find a good deal of work in a chosen field, whether it be the mechanist's trade or book-keeping(簿记). Every one of these trades requires different skills, sets different standards, and requires a different preparation. Yet they all have employeeship in common. And increasingly, especially in the large business or in government, employeeship is more important to success than the special professional knowledge or skill. Certainly more people fail because they do not know the requirements of being an employee than because they do not adequately possess the skills of their trade; the higher you climb the ladder, the more you get into administrative or executive work, the greater the emphasis on ability to work within the organization rather than on technical abilities or professional knowledge.
It is implied that fifty years ago _______.
A.eighty per cent of American working people were employed in factories
B.twenty per cent of American intellectuals were employees
C.the percentage of intellectuals in the total work force was almost the same as that of industrial workers
D.the percentage of intellectuals working as employees was not so large as that of industrial workers
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