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Which of the following are types of biometric devices used i

题目
多选题
Which of the following are types of biometric devices used in server rooms？ （）
A

Mantraps

B

Fingerprint scanners

C

CCTV systems

D

Retina scanner

E

Proxy card readers

参考答案和解析
正确答案： D,B
解析： 暂无解析
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Which of the following connector types is used for coax cable?()

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第3题：

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