在压力表的机芯型号YC-100-11-14中,100代表() ["机芯代号","配用压力表外径尺寸","轴齿轮材料代号","轴齿轮齿数"]
我国选举法规定,县级人代会的选举工作,由()主持。 ["上级人大常委会","本级选举委员会","本级人大常委会党组","本级人大常委会"]
出售不动产所发生的营业税支出,其核算账户是()。 ["管理费用","其他业务成本","营业外支出","固定资产清理"]
《信息系统工程监理单位资质等级评定条件(2012年修定版)》从2012年()月开始施行。 ["A.5 ","B.6 ","C.7 ","D.8"]
When is a first-hop redundancy protocol needed in the distribution layer?() [" when the design implements Layer 2 between the access arid distribution blocks"," when multiple vendor devices need to be supported"," when preempt tuning of the default gateway is needed"," when a robust method of backing up the default gateway is needed"," when the design implements Layer 2 between the access switch and the distribution blocks"," when the design implements Layer 2 between the access and distribution block"]
过期产儿