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질문 내용 : Your fingerprints are completely unique and remain practically unchanged from your birth to death.이 문장을 넣는건데요...If you press your thumb on an ink-pad and then on a sheet of white paper, you can see your unique print. The same is true of ach of your fingers. (1) Nature has given us a different ridge pattern for evrey finger so no two persons can have identical fingerprints. (2)this interesting fact was known to the Chinese some 2000 years ago. And so, the Chinese emperors used to sign important documents by affixing their thumbprints on them. In 1892, and English scientist named Sir Francis Gallon was the first to prove this act. He developed a system for identifying criminals on the basis of this discovery. Since then, police all over the world use fingerprints to track down criminals.(1)하고 (2) 중에서 못 고르겠어요......도와주세요...