A default Frame Relay WAN is classified as what type of physical network?（） ["point-to-point","broadcast multi-access","nonbroadcast multi-access","nonbroadcast multipoint.broadcast point-to-multipoint"]
简述企业外部学习的方式。
Which three statements about IOS Firewall configurations are true？（） ["The IP inspection rule can be applied in the inbound direction on the secured interface.","The IP inspection rule can be applied in the outbound direction on the unsecured interface.","The ACL applied in the outbound direction on the unsecured interface should be an extended ACL.","The ACL applied in the inbound direction on the unsecured interface should be an extended ACL.","For temporary openings to be created dynamically by Cisco IOS Firewall，the access-list for thereturning traffic must be a standard ACL.","For temporary openings to be created dynamically by Cisco IOS Firewall，the IP inspection rule must be applied to the secured interface."]
下列指标当中属于短期偿债能力分析指标的有（）。 ["流动比率","现金比率","已获利息倍数","资产负债率"]
下列指标当中属于长期偿债能力分析指标的有（）。 ["流动比率","现金比率","已获利息倍数","资产负债率"]
教学就是学校教学，是专指学校中教师引导学生一起进行的，以特定文化为对象的（）。儿童、社会、知识是课程与教学的核心问题。
