当单位变动成本改变时,若其他因素不变,则保本销售量 ()。
重合剖面的轮廓线用()画出。 ["细实线","粗实线","细点划线","粗点划线"]
What are two features of WCS wireless management? () [" centralized management for autonomous access points"," centralized management for lightweight access points"," integration with the Location Appliance to expand real time tracking to 1500 devices for 30 days"," integration with the Location Appliance to expand real time tracking to 2500 devices for 15 days"," the inclusion of an integrated AAA server"," an external AAA-server requirement"]
略述“百家争鸣”发生的社会背景、主要派别及其主要代表人物。
现代汉语的词类根据功能首先可以划分为()和()两大类。
结合中国实际,讨论人口过快增长对经济发展的制约作用。