修复

src/Jiaowu.Api/Infrastructure/Grades/ExperimentGradeAggregationService.cs

@@ -58,9 +58,8 @@ public static class ExperimentGradeAggregationService
             cancellationToken);
         var requestedStudentIds = studentIds.Distinct().ToArray();
         var persistedScores = await db.ExperimentCourseGrades.AsNoTracking()
-            .Where(x =>
-                x.TeachingTaskId == teachingTaskId &&
-                requestedStudentIds.Contains(x.StudentId))
+            .Where(x => x.TeachingTaskId == teachingTaskId)
+            .WhereIn(requestedStudentIds, x => x.StudentId)
             .ToDictionaryAsync(
                 x => x.StudentId,
                 x => x.WeightedAverageScore,