[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fbPjORXbLczh2o64qU0xO4oSWbJKsE3XlLofRr8wuAQk":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":10,"question":14,"related":15,"source":22,"type":23},[],"2023-11-19 14:58:31",106807607,[8,9],"正确","错误",{"courseId":11,"courseImg":12,"courseName":13},"433948c646892fec7f9a6b926aa56ab5","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F84f48179a387c3eba6d1cdd8fcffd4b3.jpg","数据库原理与应用(Database Theory and Application)","the mapping cardinality of entity-sets students and courses is one-to-many mapping",[16,24,29,34,37],{"answer":17,"createTime":18,"id":19,"options":20,"question":21,"source":22,"type":23},[],"2023-11-19 14:58:30",106807602,[8,9],"Every entity in the entity-set can has different set of attributes","v1",3,{"answer":25,"createTime":18,"id":26,"options":27,"question":28,"source":22,"type":23},[],106807603,[8,9],"Relationships can not have attributes",{"answer":30,"createTime":18,"id":31,"options":32,"question":33,"source":22,"type":23},[],106807604,[8,9],"The basis for distinguishing between different entities is NAME",{"answer":35,"createTime":5,"id":6,"options":36,"question":14,"source":22,"type":23},[],[8,9],{"answer":38,"createTime":5,"id":39,"options":40,"question":41,"source":22,"type":23},[],106807609,[8,9],"Entity refers to something that exists objectively in the real world. Conceptual things cannot be called entities"]