json.left_banner_id @left_banner_id
json.left_banner_name @left_banner_name
json.partial! "exercises/user_exercise_info",locals:{exercise:@exercise,
                                                     is_teacher_or:@is_teacher_or,
                                                     ex_answerer:@ex_answerer,
                                                     exercise_user:@exercise_user,
                                                     ex_obj_array:@ex_obj_array,
                                                     ex_sub_array:@ex_sub_array,
                                                     exercise_questions:@exercise_questions,
                                                     student_status:@student_status,
                                                     question_status:@question_status,
                                                     ex_answer_status:@ex_answer_status
}