Which two methods can be used to prevent or reduce RFI from colocated directional antennas() ["Alternate polarization between colocated antennas","Cross-polarize antennas between endpoints","Install an RF-shielded box around the antennas","Increase the distance between the antenna"]
头肩底向上突破颈线,()突破的可能性大。 ["成交量较小","成交量较大","成交量比较温和","与成交量无关"]
Which three are the phases of the Cisco Smart Business Roadmap?() [" foundation"," optimized"," implemented"," growth"," finished"," beginning"]
某学校拟新建三幢学生宿舍楼,合同工期为500天。施工企业在每幢宿舍楼各个施工过程的持续时间见下表。
工程实施中发生如下事件。
事件一。项目经理部根据有关规定,针对水平混凝土构件模板(架)体系,编制了模板(架)工程专项施工方案,经过施工项目负责人批准后开始实施,仅安排施工项目技术负责人进行现场监督。
事件二。在施工过程中,该工程因罕见的特大台风停工2天,台风给建设单位和施工单位造成了较大的经济损失。施工单位认为这些损失是由于特大台风所造成的,提出下列索赔要求(以下索赔数据与实际情况相符)。
(1)工程清理、恢复费用10万。
(2)施工单位的机械设备重新购置和修理费用20万。
(3)施工单位的人员伤亡善后费用32万。
(4)工期顺延2日。
列式计算A、B、C三个施工过程之间的流水步距分别是多少天?
Which antenna generally has the narrowest first Fresnel zone in both the horizontal and verticalplanes?() ["omnidirectional","patch","Yagi","sector","parabolic dish"]
商业银行作为金融企业的主要功能中,最能表征商业银行特点的功能是()功能和()功能。