下列票据的出票人是银行的是（） ["银行本票","银行汇票","银行承兑汇票","商业承兑汇票"]
数据库体系结构中包含的三级模式为（）、（）和内模式三种。
循环泵水管路应装压力表的位置是（）
CDP is running between two TestKing devices. What information is supplied by CDP?（） [" Device identifiers"," Capabilities list"," Platform"," Route identifier"," Neighbor traffic data"]
“利润最大化”与“财富最大化”之间有何区别？
熔合线
