题型:名词解释 Both bus and tree topologies are characterized by the use of multipoint().For the bus,all stations attach,through appropriate hardware()known as a tap,directly to a linear transmission medium,or bus.Full-duplex operation between the station and the tap allows data to be transmitted onto the bus and received from the().A transmission from any station propagates the length of the medium in both directions and can be received by all other().At each end of the bus is a(),which absorbs any signal,removing it from the bus.Full-duplex operation between the station and the tap allows data to be transmitted onto the bus and received from the().A.treeB.busC.starD.ring 查看答案
题型:名词解释 下列关于会计信息质量要求的表述中,正确的有()。A.在物价上涨期间,采用先进先出法计量发出存货的成本体现了谨慎性会计信息质量要求B.避免企业出现提供会计信息的成本大于收益的情况体现了重要性会计信息质量要求C.企业会计政策不得随意变更体现了可比性会计信息质量要求D.企业提供的信息应清晰明了地反映其财务状况和经营成果体现了相关性会计信息质量要求 查看答案
题型:名词解释 肝性脑病昏迷期病人饮食要点为( )。A.应禁食蛋白质,待病情好转后,可逐渐增加其摄入量B.显著腹水者,钠应限制在每天500~800mgC.清醒后可逐步增加蛋白饮食,应以植物蛋白为宜,如豆制品D.清醒后可逐步增加蛋白饮食,应以动物蛋白为宜,如牛奶,瘦肉E.提供足够的热量,以减少组织蛋白分解产氨 查看答案