diff --git a/IRaCIS.Core.Application/Service/Reading/Dto/ReadingImageTaskViewModel.cs b/IRaCIS.Core.Application/Service/Reading/Dto/ReadingImageTaskViewModel.cs
index e6fce89b6..e4a20aa8d 100644
--- a/IRaCIS.Core.Application/Service/Reading/Dto/ReadingImageTaskViewModel.cs
+++ b/IRaCIS.Core.Application/Service/Reading/Dto/ReadingImageTaskViewModel.cs
@@ -1581,7 +1581,7 @@ namespace IRaCIS.Core.Application.Service.Reading.Dto
 		/// <summary>
 		/// 裁判百分比或绝对值的相差值匹配规则
 		/// </summary>
-		public JudgeDifferenceType? JudgeDifferenceType { get; set; }
+		public JudgeDifferenceType JudgeDifferenceType { get; set; }
 
 		public bool IsHaveChange { get; set; } = false;
 
@@ -1828,7 +1828,7 @@ namespace IRaCIS.Core.Application.Service.Reading.Dto
 		/// <summary>
 		/// 裁判百分比或绝对值的相差值匹配规则
 		/// </summary>
-		public JudgeDifferenceType? JudgeDifferenceType { get; set; }
+		public JudgeDifferenceType JudgeDifferenceType { get; set; }
 
 
 		public List<AnswerCombinationDto> AnswerCombination { get; set; }
@@ -1850,7 +1850,7 @@ namespace IRaCIS.Core.Application.Service.Reading.Dto
 		/// <summary>
 		/// 裁判百分比或绝对值的相差值匹配规则
 		/// </summary>
-		public JudgeDifferenceType? JudgeDifferenceType { get; set; }
+		public JudgeDifferenceType JudgeDifferenceType { get; set; }
 
 		public string QuestionName { get; set; }
 
@@ -2295,7 +2295,7 @@ namespace IRaCIS.Core.Application.Service.Reading.Dto
 		/// <summary>
 		/// 裁判百分比或绝对值的相差值匹配规则
 		/// </summary>
-		public JudgeDifferenceType? JudgeDifferenceType { get; set; }
+		public JudgeDifferenceType JudgeDifferenceType { get; set; }
 		public string AnswerGroup { get; set; }
 
 
@@ -2349,7 +2349,7 @@ namespace IRaCIS.Core.Application.Service.Reading.Dto
 		/// <summary>
 		/// 裁判百分比或绝对值的相差值匹配规则
 		/// </summary>
-		public JudgeDifferenceType? JudgeDifferenceType { get; set; }
+		public JudgeDifferenceType JudgeDifferenceType { get; set; }
 	}
 
 
diff --git a/IRaCIS.Core.Domain/Reading/ReadingCriterionQuestion/ReadingQuestionTrial.cs b/IRaCIS.Core.Domain/Reading/ReadingCriterionQuestion/ReadingQuestionTrial.cs
index a650ec003..5c315bf9b 100644
--- a/IRaCIS.Core.Domain/Reading/ReadingCriterionQuestion/ReadingQuestionTrial.cs
+++ b/IRaCIS.Core.Domain/Reading/ReadingCriterionQuestion/ReadingQuestionTrial.cs
@@ -142,7 +142,7 @@ namespace IRaCIS.Core.Domain.Models
 		/// <summary>
 		/// 裁判百分比或绝对值的相差值匹配规则
 		/// </summary>
-		public JudgeDifferenceType? JudgeDifferenceType { get; set; }
+		public JudgeDifferenceType JudgeDifferenceType { get; set; }
 
 		/// <summary>
 		/// 创建人