Refer to the exhibit. SW1 and SW2 have default configurations. What will happen if host 1 sends a broadcast？（） [" Hosts 2， 3， and 4 will receive the broadcast. "," Hosts 1， 2， 3， and 4 will receive the broadcast."," Host 2 and the Fa0\/0 interface of R1 will receive the broadcast."," Hosts 1， 2 and the Fa0\/0 interface of R1 will receive the broadcast. "," Hosts 1， 2， 3， 4 and interface Fa0\/0 of R1 will receive the broadcast."," Hosts 2， 3， 4， and interfaces Fa0\/0 and Fa0\/1 of R1 will receive the broadcast."]
监理人有权对全部工程的所有部位及其任何一项工艺、材料和工程设备进行检查和检验。监理人的检查和检验（）承包人按施工合同规定应负的责任。 ["部分免除","不免除","可以免除","完全免除"]
汽车电路的基本特点是什么（）。 ["单线制","负极搭铁","各用电器互相并联","共用一根电源线"]
美国政府分别于（）提出了“全球信息基础设施”.“数字地球计划”。 ["1998年","1996年","1997年","1995年"]
原则上初审时间应控制在（） ["10个工作日内","15个工作日内","20个工作日内","30个工作日内"]
电子订货系统
