biometric authentication是什么意思

biometric authentication是什么意思 biometric hardware products 如何翻译? biometric services fee 是什么意思.为什么移民申请要加这个费用. similarity和identity不同吗?Biometric access-control system work by degrees of similarity,not by identity. 概率题求解答（英文）A biometric security device using fingerprints erroneously refuses to admit 1 in 1,700 authorized persons from a facility containing classified information.The device will erroneously admit 1 in 1,006,000 unauthorized pe GMAT逻辑题目Biometric access-control systems-those using fingerprints, voiceprints, etc., to regulate admittance to restricted areas-work by degrees of similarity, not by identity. After all, even the same finger will rarely leave exactly identic