3. For Section II, you must use a 0.5 mm black ink pen to write on the answer sheet. The handwriting must be neat and clear. For drawing questions, you may first use a pencil to draw in the designated position on the answer sheet, and after confirmation, describe it clearly with a 0.5 mm black ink pen. You must answer in the answer area indicated by the question number. Answers written outside the answer area are invalid, and answers written on the test paper or draft paper are invalid.