diff --git a/题库0.3/Problems.json b/题库0.3/Problems.json
index 0b8e492a..01a858fe 100644
--- a/题库0.3/Problems.json
+++ b/题库0.3/Problems.json
@@ -496622,7 +496622,9 @@
             "20230705\t王伟叶"
         ],
         "same": [],
-        "related": [],
+        "related": [
+            "024273"
+        ],
         "remark": "",
         "space": "4em",
         "unrelated": []
@@ -658382,6 +658384,31 @@
         "space": "",
         "unrelated": []
     },
+    "024273": {
+        "id": "024273",
+        "content": "填写下表.\n\\begin{center}\n\\begin{tabular}{|c|c|c|c|c|}\n\\hline 角$\\alpha$& 0 &$\\dfrac{\\pi}{2}$&$\\pi$&$\\dfrac{3 \\pi}{2}$\\\\\n\\hline$\\sin \\alpha$& & & & \\\\\n\\hline$\\cos \\alpha$& & & & \\\\\n\\hline$\\tan \\alpha$& & & & \\\\\n\\hline$\\cot \\alpha$& & & & \\\\\n\\hline\n\\end{tabular}\n\\end{center}",
+        "objs": [],
+        "tags": [
+            "第三单元"
+        ],
+        "genre": "4em",
+        "ans": "",
+        "solution": "",
+        "duration": -1,
+        "usages": [],
+        "origin": "空中课堂必修第二册三角例题与习题-20240131修改",
+        "edit": [
+            "20230705\t王伟叶",
+            "20240131\t王伟叶"
+        ],
+        "same": [],
+        "related": [
+            "018332"
+        ],
+        "remark": "",
+        "space": "",
+        "unrelated": []
+    },
     "030001": {
         "id": "030001",
         "content": "若$x,y,z$都是实数, 则:(填写``\\textcircled{1} 充分非必要、\\textcircled{2} 必要非充分、\\textcircled{3} 充要、\\textcircled{4} 既非充分又非必要''之一)\\\\\n(1) ``$xy=0$''是``$x=0$''的\\blank{50}条件;\\\\\n(2) ``$x\\cdot y=y\\cdot z$''是``$x=z$''的\\blank{50}条件;\\\\\n(3) ``$\\dfrac xy=\\dfrac yz$''是``$xz=y^2$''的\\blank{50}条件;\\\\\n(4) ``$|x |>| y|$''是``$x>y>0$''的\\blank{50}条件;\\\\\n(5) ``$x^2>4$''是``$x>2$'' 的\\blank{50}条件;\\\\\n(6) ``$x=-3$''是``$x^2+x-6=0$'' 的\\blank{50}条件;\\\\\n(7) ``$|x+y|<2$''是``$|x|<1$且$|y|<1$'' 的\\blank{50}条件;\\\\\n(8) ``$|x|<3$''是``$x^2<9$'' 的\\blank{50}条件;\\\\\n(9) ``$x^2+y^2>0$''是``$x\\ne 0$'' 的\\blank{50}条件;\\\\\n(10) ``$\\dfrac{x^2+x+1}{3x+2}<0$''是``$3x+2<0$'' 的\\blank{50}条件;\\\\\n(11) ``$0<x<3$''是``$|x-1|<2$'' 的\\blank{50}条件.",