蔡元培的大学办学指导思想有()。 [" 尚自然"," 思想自由"," 兼容并包"," 展个性"]
引用公文应当()。 ["先引发文字号,后引文件标题","仅引文件标题","先引文件标题,后引发文件号","仅引发文字号"]
以下哪一项不是决策所需信息的分层的是() ["战略信息","数据信息","管理信息","业务信息"]
散水的宽度应小于房屋挑檐宽及基础底外缘宽() ["300mm","600mm","200mm"]
当闸墩与底板设缝分开时,称为()。 ["平底宽顶堰式底板","低实用堰式底板","整体式底板","分离式底板"]
食品防霉去毒的措施是什么?