diff --git a/工具/修改题目数据库.py b/工具/修改题目数据库.py
index 9b8b6b27..da26b966 100644
--- a/工具/修改题目数据库.py
+++ b/工具/修改题目数据库.py
@@ -1,6 +1,6 @@
 import os,re,json
 """这里编辑题号(列表)后将在vscode中打开窗口, 编辑后保存关闭, 随后运行第二个代码块"""
-problems = "31383,31384,31385"
+problems = "13982"
 
 def generate_number_set(string,dict):
     string = re.sub(r"[\n\s]","",string)
diff --git a/题库0.3/Problems.json b/题库0.3/Problems.json
index 9a6bc0e9..a6c1506b 100644
--- a/题库0.3/Problems.json
+++ b/题库0.3/Problems.json
@@ -347421,7 +347421,7 @@
             "第七单元"
         ],
         "genre": "填空题",
-        "ans": "$a-6$",
+        "ans": "$a-b$",
         "solution": "",
         "duration": -1,
         "usages": [