diff --git a/题库0.3/Problems.json b/题库0.3/Problems.json
index 0ab68ff0..390dfd68 100644
--- a/题库0.3/Problems.json
+++ b/题库0.3/Problems.json
@@ -589794,7 +589794,7 @@
             "第三单元"
         ],
         "genre": "解答题",
-        "ans": "(1) $f(x)=\\dfrac{\\sqrt{3}}{2}\\sin(3x+\\pi)+\\dfrac{\\sqrt{3}}{2};$\\\\\n(2) $[-\\dfrac{\\pi}{2}+\\dfrac{2k\\pi}{3},-\\dfrac{\\pi}{6}+\\dfrac{2k\\pi}{3}],k \\in \\mathbf{Z}$;\\\\\n(3) 函数最大值为$\\sqrt{3}$,此时$x$值为${x|x=-\\dfrac{\\pi}{6}+\\dfrac{2k\\pi}{3},k \\in \\mathbf{Z}}$",
+        "ans": "(1) $f(x)=\\dfrac{\\sqrt{3}}{2}\\sin(3x+\\pi)+\\dfrac{\\sqrt{3}}{2};$\\\\\n(2) $[-\\dfrac{\\pi}{2}+\\dfrac{2k\\pi}{3},-\\dfrac{\\pi}{6}+\\dfrac{2k\\pi}{3}],k \\in \\mathbf{Z}$;\\\\\n(3) 函数最大值为$\\sqrt{3}$,此时$x$值的集合为$\\{x|x=-\\dfrac{\\pi}{6}+\\dfrac{2k\\pi}{3},k \\in \\mathbf{Z}\\}$",
         "solution": "",
         "duration": -1,
         "usages": [
@@ -589809,7 +589809,8 @@
         ],
         "origin": "2025届高一下校本作业",
         "edit": [
-            "20230209\t王伟叶"
+            "20230209\t王伟叶",
+            "20240210\t王伟叶"
         ],
         "same": [],
         "related": [],
@@ -589850,13 +589851,13 @@
     },
     "021699": {
         "id": "021699",
-        "content": "要得到函数$y=3 \\sin x$的图像, 只需要把函数$y=\\sin x$的图像上的对应点的坐标\\blank{30}(``伸长''或``缩短'')到原来的\\blank{50}.",
+        "content": "要得到函数$y=3 \\sin x$的图像, 只需要把函数$y=\\sin x$的图像上的对应点的\\blank{20}坐标\\blank{30}(``伸长''或``缩短'')到原来的\\blank{50}.",
         "objs": [],
         "tags": [
             "第三单元"
         ],
         "genre": "填空题",
-        "ans": "纵;伸长; $3$.",
+        "ans": "纵;伸长; $3$倍.",
         "solution": "",
         "duration": -1,
         "usages": [
@@ -589871,7 +589872,8 @@
         ],
         "origin": "2025届高一下校本作业",
         "edit": [
-            "20230209\t王伟叶"
+            "20230209\t王伟叶",
+            "20240210\t王伟叶"
         ],
         "same": [],
         "related": [],