Which of these is the best way to provide sender non-repudiation？（） [" pre-sharedkey"," secure hash"," SSL"," RSA signature"]
需要进行微生物基础知识和洁净区作业培训的人员包括（）、（）、（）。
Which attribute is used to pass the user role back to the Nexus when remote AAA is enabled？（） [" Cisco AV-pair"," TACACS+ or RADIUS ack frame role attribute"," DH-CHAP challenge attribute"," privilege level attribute"]
地震勘探野外采集工作主要包括哪些内容？
人格修养指导是其他管理方法的基础，在班级管理过程中处于核心地位。
我国教育浪费的表现形式有哪些？
