Which statement inserted at line II, retrieves the text from the second text field?() [" second = request.getParameter (“foo”):"," second = request.getParameter (“foo”, 1):"," second = request.getParameter (“foo”,2):"," second = request.getParameter (foo”) [1]:"," second = request.getParameter Values (“foo”) [1]:"]
关于电磁流量计安装技术要求,下列说法正确的是()。 ["电磁流量计应安装在流量调节阀的下游","电磁流量计在垂直管道安装时,液体流向自上而下","流量计的上游应有4~5倍管径长度的直管段","电磁流量计水平安装时必须使电极处在水平方向"]
限制FTP站点安全性的手段是
实现中国梦必须凝聚人类智慧。
Which two are characteristics of the IS -IS protocol but not OSPF?() [" forms adjacencies with all neighbors"," supports demand circuit routing"," provides routing support for multiple network layer protocols"," utilizes SPF algorithm"," provides for network scalability by allowing the network to be separated into areas"," three layers of hierarchical routing"]
在活动目录中,计算机账户用来代表域中的()。