无形资产评估值与企业的经济效益成（）。 ["正比","反比","相等","不一定"]
Which utility is used to configure the WebSEAL Server once the files are installed?（） ["pdadmin","pdconfig","web_config","config_we"]
在网络中分配IP地址可以采用静态地址或动态地址方案。下面关于两种地址分配方案的论述中错误的是（）。 ["采用动态地址分配方案可便面地址资源的浪费","路由器、交换机等联网设备适合采用静态IP地址","各种服务器设备适合采用动态IP地址分配方案","学生客户机最好采用动态IP地址"]
甲流域为羽状水系，乙流域为扇状水系，其它流域下垫面因素和气象因素均相同，对相同的短历时暴雨所形成的流量过程，甲流域的洪峰流量比乙流域的（） {"1":"洪峰流量小、峰现时间早","2":"洪峰流量小、峰现时间晚","3":"洪峰流量大、峰现时间晚","4":"洪峰流量大、峰现时间早"}
Eduardo chose native style (use native control )when he created an editable field on a form. how will the field appear to notes users? （） ["fixed size outlined rectangle ","blank space marked off by red brackets ","blank space marked off by black brackets ","the field will not appear to notes users.it will only be visible to web user"]
请论述物流产业的特征及产业结构
