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Biological Identification Technologies When a person walks, the movement of his head, trunk, and limbs (肢体) are all reflecte
Biological Identification Technologies When a person walks, the movement of his head, trunk, and limbs (肢体) are all reflecte
admin
2009-05-21
72
问题
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’s voice is (54) . When a person’s voice is recorded by an instrument, his voice frequency spectrum (频谱) is called sound print. (55) a fingerprint, everybody’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’s.
We often bring ID cards, work cards, or driving licenses with us to (59) our identify. If all these cards are forgotten or lost, how can we prove whom we are? In (60) , it’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 (面部的) 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.
选项
A、With
B、Like
C、For
D、As
答案
B
解析
由于每个人的声音不一样,声音的频谱自然也不一样。根据常识可知,人的指纹各不相同,所以,这句话的意思是声纹和指纹一样,每个个体皆不相同。like是介词,表达了“类似,和……一样”的含义,所以此处选like,而with,for没有“相似”的含义,as能表达“像”的含义,但用法不同,所以选B。
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