修改5220题面

题库0.3/Problems.json

@@ -159690,7 +159690,7 @@
     },
     "005220": {
         "id": "005220",
-        "content": "设$x\\in \\mathbf{R}$, 则$(1-|x|)(1+x)>0$成立的充要条件是\\bracket{20}.\n\\fourch{$|x|<1$}{$x<1$}{$|x|>1$}{$x<1$且$x\\ne 1$}",
+        "content": "设$x\\in \\mathbf{R}$, 则$(1-|x|)(1+x)>0$成立的充要条件是\\bracket{20}.\n\\fourch{$|x|<1$}{$x<1$}{$|x|>1$}{$x<1$且$x\\ne -1$}",
         "objs": [
             "K0113001B",
             "K0117001B",
@@ -159718,7 +159718,8 @@
         ],
         "origin": "代数精编第二章不等式",
         "edit": [
-            "20220720\t王伟叶"
+            "20220720\t王伟叶",
+            "20240128\t王伟叶"
         ],
         "same": [
             "020173"