信息资源是由（）、人、（）、（）四种最基木的要素构成的。
锅炉给水为什么调节PH值？
下列哪些是护理领导者需要具备的素质：（） [" 身体素质"," 政治素质 "," 心理素质 "," 道德素质"]
Which two settings must be configured in order to use the GUI to configure Call Admission Control with voice applications?（） [" QoS must be set to Platinum"," WMM must be enabled"," QoS must be set to Gold"," TSPEC must be disabled"," Cisco Compatible Extensions must be disabled"]
调查研究前期准备的能力包括（）。 ["准备其他调查研究资料","撰写调查研究报告","制定调查研究计划","编写调查研究纲要"]
创新的特征有哪些？
