diff --git a/Tiobon.Core.Services/CommonServices.cs b/Tiobon.Core.Services/CommonServices.cs
index 9119c395..e37a3084 100644
--- a/Tiobon.Core.Services/CommonServices.cs
+++ b/Tiobon.Core.Services/CommonServices.cs
@@ -310,7 +310,7 @@ public partial class CommonServices : BaseServices<RootEntityTkey<int>>, ICommon
                           AND a.UserID = '{1}'
                           AND a.IsEnable = 1
                           AND a.PageSettingQueryId = b.PageSettingQueryId";
-        sql = string.Format(sql, param.menuName, App.User.ID, param.langId);
+        sql = string.Format(sql, param.menuName, App.User.ID, param.langId); 
         int UserHasSetting = Db.Ado.GetInt(sql);
         if (UserHasSetting == 0)
         {
diff --git a/Tiobon.Core.Services/Ghre/Ghre_QuestionServices.cs b/Tiobon.Core.Services/Ghre/Ghre_QuestionServices.cs
index 640d14a3..40ebed8d 100644
--- a/Tiobon.Core.Services/Ghre/Ghre_QuestionServices.cs
+++ b/Tiobon.Core.Services/Ghre/Ghre_QuestionServices.cs
@@ -37,18 +37,14 @@ public class Ghre_QuestionServices : BaseServices<Ghre_Question, Ghre_QuestionDt
     {
         var data1 = await BaseDal.QueryFilterPage(body);
         var data = Mapper.Map(data1.result.DT_TableDataT1).ToANew<List<Ghre_QuestionDto>>();
-        var courseIds = data.Where(x => x.CourseId != null).Select(x => x.CourseId).ToList();
+        var courseIds = data.Where(x => x.CourseId != null).Select(x => x.CourseId).Distinct().ToList();
 
         var courses = await _ghre_CourseServices.Query(x => courseIds.Contains(x.Id));
-        var classs = await _ghre_CourseClassServices.Query();
+        var classsIds = courses.Select(x => x.CourseClassId).Distinct().ToList();
+        var classs = await _ghre_CourseClassServices.Query(x => classsIds.Contains(x.Id));
         data.ForEach(x =>
         {
-            if (x.DifficultyLevel == "Easy")
-                x.DifficultyLevel = "简单";
-            else if (x.DifficultyLevel == "Normal")
-                x.DifficultyLevel = "普通";
-            else if (x.DifficultyLevel == "Hard")
-                x.DifficultyLevel = "困难";
+            x.DifficultyLevel = ConvertDifficultyLevel(x.DifficultyLevel);
             x.QuestionType = ConvertQuestionType(x.QuestionType);
 
             if (x.CourseId != null)
@@ -493,7 +489,7 @@ public class Ghre_QuestionServices : BaseServices<Ghre_Question, Ghre_QuestionDt
             throw new Exception("答案选项必填！");
         if (questionType.detail.answerList.Count < 2)
             throw new Exception("答案选项不能少于两个！");
-        if (string.IsNullOrWhiteSpace( questionType.detail.answer ) && (questionType.detail.answer is null || (questionType.detail.answer != null && !questionType.detail.answerList.Any())))
+        if (string.IsNullOrWhiteSpace(questionType.detail.answer) && (questionType.detail.answer is null || (questionType.detail.answer != null && !questionType.detail.answerList.Any())))
             throw new Exception("正确答案未标记！");
     }
 }
\ No newline at end of file