跟你的老师争论没有什么意义，你可以在词典上了解这个短语的用法。

　　Ⅲ.阅读理解

　　A

　　(2017·厦门质检)

　　There are records of fingerprints taken many centuries ago. The ancient Babylonians pressed the tips of their fingerprints into clay to record business trade. The Chinese used ink­on­paper finger impressions for business. However, fingerprinting wasn't used as a method for identifying criminals until the 19th century.

　　In 1858, Sir William Herschel was working as an official of the Hooghly district in Jungipoor, India. In order to reduce fraud (诈骗), he had people living in the district record their fingerprints when signing business documents. A few years later, Scottish doctor Henry Faulds was working in Japan when he discovered fingerprints left by artists on ancient pieces of clay. This finding inspired him to begin investigating fingerprints. In 1880, Faulds wrote to his cousin, the famous naturalist Charles Darwin, and asked for help with developing a fingerprint classification system. Darwin refused, but sent the letter to his cousin, Sir Francis Gallon, who was an eugenicist (优生学家). Gallon began collecting fingerprints and eventually gathered some 8,000 different samples to analyze. In 1892, he published a book called Fingerprints, in which he outlined a fingerprint classification system — the first existence.

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