题目内容

当空气中一氧化碳浓度达到（）%时，经数小时仅有头痛、心跳、耳鸣等轻微中毒症状。

A. 0.016
B. 0.048
C. 0.128
D. 0.4

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Consider the Mysql Enterprise Audit plugin. Which statement is true when you identify a connection event that has used external authentication?（）

A. The attribute "STATUS" is set to the string EXTERNAL_AUTH
B. The attribute "PRIV_USER" contains the username
C. The event type that is given in the attribute "NAME" is EXTERNAL_AUTH
D. There is no differentiation between native and external authentication events
External authentication is managed through external auditing logs
F. The "PROXY_PRIV" user shows a username if external authentication is used

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