[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$f3Dr5Ous8wWMM223sVEBMKLAfS16OskszJAS3yzin2h0":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":19,"related":20,"source":24,"type":25},[],"2025-05-13 17:48:42",187651133,[8,9,10,11],"以点\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Ff117df030e6b7553da2827da24fca217.png\">为中心的空心方邻域可表示为\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F9c73f160e1d0adca7aec12a82b944883.png\">","边界点一定是聚点","内点必然是聚点","所有点集均有聚点",{"count":13,"courseId":14,"courseImg":15,"courseName":16,"workId":17,"workName":18},2,"c453c6889a3b36470717770127a6349b","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F69c3d6845d1c5686e3de0fc1e895c797.PNG","分析方法选讲（必学）","57ecf862367349169bd4af60b9717ce5","16.1.1","下列描述正确的是",[21,26],{"answer":22,"createTime":5,"id":6,"options":23,"question":19,"source":24,"type":25},[],[8,9,10,11],"v1",0,{"answer":27,"createTime":5,"id":28,"options":29,"question":34,"source":24,"type":25},[],187651139,[30,31,32,33],"开域必然是非空连通开集","开域连同其边界所成的集合为闭域","区域就是所有开域和闭域的统称","闭集和闭域是不同的概念","下列描述错误的是"]