diff --git a/data/tree.json b/data/tree.json
index 29d9b609ab65f275567b0daf03fbeb52a42ce79a..3f7ef1b915ebb2ec445f65f362f55d53b3657578 100644
--- a/data/tree.json
+++ b/data/tree.json
@@ -19,54 +19,6 @@
                   "网络拓扑的分类"
                 ],
                 "children": [
-                  {
-                    "网络中的数据是如何传递的": {
-                      "node_id": "network-e0ad5915797348a88f55399a18ca858d",
-                      "keywords": [
-                        "网络简介"
-                      ],
-                      "children": [
-                        {
-                          "网络中的数据是如何传递的": {
-                            "keywords": [
-                              "访问网页数据的传递过程"
-                            ],
-                            "children": [],
-                            "node_id": "network-90eb249a1a944545bec9375caa09b7ee",
-                            "keywords_must": [],
-                            "keywords_forbid": []
-                          }
-                        },
-                        {
-                          "我国网络的发展情况": {
-                            "keywords": [
-                              "我国网络的发展的发展"
-                            ],
-                            "children": [],
-                            "node_id": "network-f5d2f2b5a7624f7a95ff3e1ab2fa4fc5",
-                            "keywords_must": [],
-                            "keywords_forbid": []
-                          }
-                        },
-                        {
-                          "什么是网络": {
-                            "keywords": [
-                              "计算机之间相互独立自治",
-                              "通信介质",
-                              "网络协议",
-                              "资源共享"
-                            ],
-                            "children": [],
-                            "node_id": "network-8a6a24c32e154eb396619dbbfbdab0e7",
-                            "keywords_must": [],
-                            "keywords_forbid": []
-                          }
-                        }
-                      ],
-                      "keywords_must": [],
-                      "keywords_forbid": []
-                    }
-                  },
                   {
                     "常见的网络设备": {
                       "node_id": "network-16b1ac6767d947f4b9cf1be248239823",