题型:选择题 When it comes to the civil war in Syria, the US government’s attitude towards it has experienced a(n)_______ change , which may have a positive effect on Syria present situation.A.superiorB.superbC.subtleD.stubborn 查看答案
题型:多项选择题 下列关于SSS的预处理号码配置说法正确的是()A.预处理号码分为号码和域名两部分B.预处理号码是根据主叫或者被叫或者号码分析选择子C.预处理域名是根据PAI字段中SIP格式PUI中@后面的域名判断的D.域名分析是从右往左匹配,按照“.”分隔符,一节一节匹配的 查看答案