diff --git a/题库0.3/Problems.json b/题库0.3/Problems.json
index b8201fac..35f3d813 100644
--- a/题库0.3/Problems.json
+++ b/题库0.3/Problems.json
@@ -294529,7 +294529,7 @@
     },
     "009616": {
         "id": "009616",
-        "content": "在$\\triangle ABC$中, 化简:\n(1) $\\overrightarrow{AB}-\\overrightarrow{AC}=$\\blank{50};\\\\\n(2) $\\overrightarrow{BC}-\\overrightarrow{AC}=$\\blank{50}.",
+        "content": "在$\\triangle ABC$中, 化简:\\\\\n(1) $\\overrightarrow{AB}-\\overrightarrow{AC}=$\\blank{50};\\\\\n(2) $\\overrightarrow{BC}-\\overrightarrow{AC}=$\\blank{50}.",
         "objs": [],
         "tags": [
             "第五单元"
@@ -294543,7 +294543,8 @@
             "来源": "新教材必修第二册课堂练习"
         },
         "edit": [
-            "20220730\t王伟叶"
+            "20220730\t王伟叶",
+            "20240408\t王伟叶"
         ],
         "same": [],
         "related": [],
@@ -656182,7 +656183,7 @@
     },
     "021733": {
         "id": "021733",
-        "content": "判断下列命题的真假:\\\\\n(1) 长度相等的向量都相等, \\blank{20};\\\\\n(2) 若$\\overrightarrow {a}=\\overrightarrow {b}, \\overrightarrow {c}=\\overrightarrow {b}$, 则$\\overrightarrow {a}=\\overrightarrow {c}$, \\blank{20};\\\\\n(3) 若四边形$ABCD$是平行四边形, 则$\\overrightarrow{AB}=\\overrightarrow{CD}$, \\blank{20};\\\\\n(4) 已知$A,B,C,D$四点两两不重合, 若$\\overrightarrow{AB}=\\overrightarrow{DC}$, 则$|\\overrightarrow{AB}|=|\\overrightarrow{CD}|$且直线$AB\\parallel CD$, \\blank{20}.",
+        "content": "判断下列命题的真假:\\\\\n(1) 长度相等的向量都相等; \\blank{20}\\\\\n(2) 若$\\overrightarrow {a}=\\overrightarrow {b}, \\overrightarrow {c}=\\overrightarrow {b}$, 则$\\overrightarrow {a}=\\overrightarrow {c}$; \\blank{20}\\\\\n(3) 若四边形$ABCD$是平行四边形, 则$\\overrightarrow{AB}=\\overrightarrow{CD}$; \\blank{20}\\\\\n(4) 已知$A,B,C,D$四点两两不重合, 若$\\overrightarrow{AB}=\\overrightarrow{DC}$, 则$|\\overrightarrow{AB}|=|\\overrightarrow{CD}|$且直线$AB\\parallel CD$. \\blank{20}",
         "objs": [],
         "tags": [
             "第五单元"
@@ -656205,7 +656206,8 @@
             "来源": "2025届高一下校本作业"
         },
         "edit": [
-            "20230209\t王伟叶"
+            "20230209\t王伟叶",
+            "20240408\t王伟叶"
         ],
         "same": [],
         "related": [],