[问答题] 简述现实主义的主要特征。

结构化分析方法的核心思想是（）、（）、逐步求精。 预制外挂墙板安装尺寸，斜撑杆位置允许偏差为（）。 ["A.±7mm ","B.±8mm ","C.±9mm ","D.±10mm"] 简述现实主义发展的过程。 鉴于电动机和电阻器在制造上存在着容差以及每台电动机使用的连接导线长短不同等因素，也会导致电动机的机械特性不一致。为了保证每台电动机都具有相同的机械特性，可采用调整电阻箱中长期接入（）的办法来解决。 ["转子的电阻值","定子的电阻值","线圈的电阻值","导线的电阻值"] You have a secured Windows Communication Foundation (WCF) service. You need to track unsuccessful attempts to access the service. What should you do?（） [" Set the authorization Manager Type attribute of the service Authorization behavior to Message."," Set the include Exception Detailsln Faults attribute of the service Debug behavior to true."," Set the Mode attribute of the security configuration element to Message."," Set the message Authentication AuditLevel attribute of the service Security Audit behavior to Failure."] 简述现实主义的主要特征。