[问答题] 船闸的工作原理

甲型流感病毒既可感染人，亦可感染动物。 声母 土壤耕性 预制阳台安装轴线位置允许偏差为（）。 ["5mm","6mm","7mm","8mm"] To which of these does IP multicast send packets?（） [" a single host"," a subset of hosts"," all hosts sequentially"," all hosts simultaneously"] 船闸的工作原理