Delete row 906 from pager_paper_questions

id 906
question_id q_31b253ff
assignment_id asgn_da1f2b30
type fill_blank
content_text 3.含有数字的成语有 ，请再举两例： （2分）
score 2.0
difficulty 0.5
correct_answer
explanation
sort_order 2
assigned_page 2
page_order 1
image_idx 0
section jichu
options []
major_index
extra_content []
ref_material_id NULL
ref_paragraph_index NULL
create_time 2026-06-16 12:20:50
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