鱼类有一些辅助呼吸器官:()如(),()如泥鳅,()如斗鱼,()如肺鱼等,主要呼吸器官为().
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Which two statements about the open and shared key wireless-authentication methods are true? ()
A. Shared key authentication is considered more secure than open authentication.
B. Shared key authentication is considered less secure than open authentication.
C. If the WEP keys do not match using the open authentication method, the client will not authenticate, associate, and transfer data.
D. If the WEP keys do not match using the open authentication method, the client will still be able to authenticate and associate, but will not transfer data.
E. If the WEP keys do not match using the open authentication method, the client will still be able to authenticate, associate, and transfer data.
根据《烟花爆竹生产企业安全生产许可证实施办法》,生产区域应有明显的()或警示语,危险工序现场应牢固张贴安全管理制度和操作规程。
A. 安全警示标志
B. 安全告知
C. 生产须知
所在地县或者设区的市人民政府电影行政部门应当自收到设立电影放映单位的申请书之日起()日内作出批准或者不批准的决定,并通知申请人。
A. 30
B. 60
C. 90
D. 120
教学技能是教师运用已有的教学理论知识,通过练习而形成的稳固、复杂的教学行为系统。()
A. 正确
B. 错误