fix bug

app/services/exercise_user_pdf_service.rb

@@ -47,7 +47,7 @@ class ExerciseUserPdfService
   end
 
   def load_data
-    @exercise_questions = exercise.exercise_questions.includes(:exercise_choices,:exercise_shixun_challenges,:exercise_answers,:exercise_shixun_answers,:exercise_answer_comments,:exercise_standard_answers)
+    @exercise_questions = exercise.exercise_questions
     @exercise_ques_count = @exercise_questions.count # 全部的题目数
     @exercise_ques_scores = @exercise_questions.pluck(:question_score).sum
 
@@ -81,6 +81,8 @@ class ExerciseUserPdfService
     @exercise_ques_shixun_count = exercise_ques_shixun.all.count
     @exercise_ques_shixun_scores = exercise_ques_shixun.pluck(:question_score).sum
 
+    @exercise_questions = @exercise_questions.includes(:exercise_choices,:exercise_shixun_challenges,:exercise_answers,:exercise_shixun_answers,:exercise_answer_comments,:exercise_standard_answers)
     get_each_student_exercise(exercise.id,@exercise_questions,@ex_user_user.id)
+
   end
 end