2. 外语
  3. According to the author, biometric technology is______. In which of the following situations is biometric technology NOT used?

According to the author, biometric technology is______. In which of the following situations is biometric technology NOT used?

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问题 According to the author, biometric technology is______.
In which of the following situations is biometric technology NOT used?
选项 A、Computers are switched on by a voice order.
B、Doctors diagnose disease through patients’ voice.
C、Museum doors are controlled by palm scanner.
D、The police identify criminals through fingerprints.
答案B
解析 细节题。答案在第三段Systems using fingerprints，hands，voices，eyes，and faces are already on the market。A、C、D能够很容易地被排除，B项医生通过病人的声音来诊断疾病，和文中提到的voices并不是一回事。
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