Delete row 1599 from pager_paper_questions

id 1599
question_id q_7a6f2bb8
assignment_id asgn_d9caae7f
type fill_blank
content_text 7.方程3x-2=7的解是（ ）
score 0.0
difficulty 0.5
correct_answer
explanation
sort_order 4
assigned_page 4
page_order 5
image_idx 0
section jichu
options []
major_index
extra_content []
ref_material_id NULL
ref_paragraph_index NULL
create_time 2026-06-17 07:02:55
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