题目内容：
根据下列材料请回答题：Biological Identification Technologies When a person walks，the movement of his head，trunk，and limbs(肢体)are a reflected in changes in his body.A computer stores these database(数据库).Later，the computer can accurately to these changes.This is a new biological identification quickly identify an examinee without disturbing him.
Eve body’S voice is_______(51)into a_______(52)him according________(53)and it can_________(54).When a person’S voice is recorded by an instrument，his voice frequency spectrum(频谱)is called sound print fingerprint，eye.body’S sound print is different.How can a computer his sound? First，his voice is recorded_________(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 identity.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，一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. A．parts
B．changes
C．positions
D．directions
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