1, retest the questions first. The topic selection is the soul of the paper, which should have specific research objects, innovative points and practical significance, and should not be too broad, too vague and too old-fashioned.
2. Secondly, optimize the experimental design. Experiment is the core of the paper, which has clear purpose, method, result and analysis, and can't be copied, tampered or omitted at will.
3. Finally, improve your writing ability. Writing is the expression of a paper, which should have strict logic, standardized format, concise language and complete quotation, and should not be vague, misspelled, wordy or lacking quotation.