Merge branch 'feature/exam' into test

合并冲突

src/Hotline.Application/Exam/Service/Practices/PracticeService.cs

@@ -596,7 +596,7 @@ namespace Hotline.Application.Exam.Service.Practices
             var questionRepository = new ExamRepository<ExamQuestion>(_uow, _dataPermissionFilterBuilder, _serviceProvider);
 
             var questionTagTable = questionTagRepostiory.Queryable();
-            var questionTable = questionRepository.Queryable();
+            var questionTable = questionRepository.Queryable().Where(x=>!(x.QuestionType == Share.Enums.Exams.EQuestionType.Single && x.QuestionType == Share.Enums.Exams.EQuestionType.Multi || x.QuestionType == Share.Enums.Exams.EQuestionType.Judge));
 
             // 按照标签获取试题，至少取一道
             if (actionRequest.Count < actionRequest.PracticeTagDtos.Count)

src/Hotline.Share/Dtos/Trains/TrainPracticeOptionsDto.cs

@@ -92,5 +92,10 @@ namespace Hotline.Share.Dtos.Trains
         [Description("是否选择")]
         public bool IsSelected { get; set; }
 
+        /// <summary>
+        /// 是否正确答案
+        /// </summary>
+        [Description("是否正确答案")]
+        public bool IsAnswer { get; set; }
     }
 }