diff --git a/题库0.3/Problems.json b/题库0.3/Problems.json
index 765e844e..69046c64 100644
--- a/题库0.3/Problems.json
+++ b/题库0.3/Problems.json
@@ -592990,7 +592990,7 @@
             "第五单元"
         ],
         "genre": "解答题",
-        "ans": "$x=4$, $y=1$.",
+        "ans": "$x=4$, $y=-1$.",
         "solution": "",
         "duration": -1,
         "usages": [
@@ -593005,7 +593005,8 @@
         ],
         "origin": "2025届高一下校本作业",
         "edit": [
-            "20230209\t王伟叶"
+            "20230209\t王伟叶",
+            "20240224\t王伟叶"
         ],
         "same": [
             "008547"
@@ -593271,7 +593272,7 @@
             "第五单元"
         ],
         "genre": "解答题",
-        "ans": "(1) 当$t=\\dfrac{3}{2}$时,点$P$在$x$轴上; 当$t=\\dfrac{1}{3}$时,点$P$在$y$轴上;当$-\\dfrac{2}{3}<t<-\\dfrac{1}{3}$时,点$P$在第二象限;\\\\\n(2) 四边形$OABP$不能构成平行四边形.",
+        "ans": "(1) 当$t=-\\dfrac{3}{2}$时,点$P$在$x$轴上; 当$t=-\\dfrac{1}{3}$时,点$P$在$y$轴上;当$-\\dfrac{2}{3}<t<-\\dfrac{1}{3}$时,点$P$在第二象限;\\\\\n(2) 四边形$OABP$不能构成平行四边形.",
         "solution": "",
         "duration": -1,
         "usages": [
@@ -593286,7 +593287,8 @@
         ],
         "origin": "2025届高一下校本作业",
         "edit": [
-            "20230209\t王伟叶"
+            "20230209\t王伟叶",
+            "20240224\t王伟叶"
         ],
         "same": [],
         "related": [],
@@ -593296,7 +593298,7 @@
     },
     "021788": {
         "id": "021788",
-        "content": "在四边形$ABCD$中, $\\overrightarrow{AB}=(6,1)$, $\\overrightarrow{BC}=(x,y)$, $\\overrightarrow{CD}=(-2,-3)$.\n(1) 若$\\overrightarrow{BC}\\parallel \\overrightarrow{DA}$, 试求$x$、$y$满足的关系式;\\\\\n(2) 满足(1)的同时, 又有$\\overrightarrow{AC} \\perp \\overrightarrow{BD}$, 求$x$、$y$的值及四边形$ABCD$的面积.",
+        "content": "在四边形$ABCD$中, $\\overrightarrow{AB}=(6,1)$, $\\overrightarrow{BC}=(x,y)$, $\\overrightarrow{CD}=(-2,-3)$.\\\\\n(1) 若$\\overrightarrow{BC}\\parallel \\overrightarrow{DA}$, 试求$x$、$y$满足的关系式;\\\\\n(2) 满足(1)的同时, 又有$\\overrightarrow{AC} \\perp \\overrightarrow{BD}$, 求$x$、$y$的值及四边形$ABCD$的面积.",
         "objs": [],
         "tags": [
             "第五单元"
@@ -593317,7 +593319,8 @@
         ],
         "origin": "2025届高一下校本作业",
         "edit": [
-            "20230209\t王伟叶"
+            "20230209\t王伟叶",
+            "20240224\t王伟叶"
         ],
         "same": [],
         "related": [],