修改一处错误答案

题库0.3/Problems.json

@@ -47121,7 +47121,7 @@
             "第三单元"
         ],
         "genre": "填空题",
-        "ans": "(1) $\\pm 1$; (2) $\\pm 12$; (3) $-\\dfrac{16}{15}$; (4) $-3$, $-\\dfrac{4}{5}$, $\\dfrac{3}{4}$",
+        "ans": "(1) $\\pm 1$; (2) $\\pm 12$; (3) $-\\dfrac{16}{15}$; (4) $-3$, $-\\dfrac{4}{5}$, $\\dfrac{4}{3}$",
         "solution": "",
         "duration": -1,
         "usages": [
@@ -47132,7 +47132,8 @@
         "edit": [
             "20220625\t王伟叶",
             "20240131\t王伟叶",
-            "20240221\t王伟叶"
+            "20240221\t王伟叶",
+            "20240222\t王伟叶"
         ],
         "same": [],
         "related": [],