6Kv并联电容器交接时电极对外壳交流耐压试验电压应为（）Kv。 ["14","19","26","34"]
To which of these does IP multicast send packets？（） [" a single host"," a subset of hosts"," all hosts sequentially"," all hosts simultaneously"]
根据《社会救助暂行办法》，对获得最低生活保障后生活仍有困难的老年人、未成年人、重度残疾人和（），县级以上地方人民政府应当采取必要措施给予生活保障。 ["孕妇","失独人员","重病患者","多胞胎产妇"]
学习是指人知结构的变化。这是（）对学习的界定。 ["行为主义心理学","认知主义心理学","人本主义心理学","建构主义理论"]
地质大循环
海相火山（次火山）热液矿床
