县级以上人民政府负有建设工程安全生产监督管理职责的部门在各自的职责范围内履行安全监督检查职责时，有权纠正施工中违反安全生产要求的行为，对发现存在安全事故隐患，立即停工整改。
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工种安全操作规程属于项目级教育的重要内容之一。
A. 正确
B. 错误
Which two steps does a receiver perform to validate a message using HMAC？ （）
A. decrypts the received MAC using a secret key
B. compares the computed MAC vs. the MAC received
C. authenticate the receivedmessage using the sender’s public key
D. look up the sender’s public key
E. extracts the MAC from the receivedmessage thenencrypts the received message with a secret keyto producethe MAC
F. Computes the MAC using the receivedmessage and a secret key as inputs to the hash functio
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