1, the answer only lists one or more solutions to the test questions. Candidates' answers are different from the listed answers, so you can refer to the scoring criteria in the answers and score accordingly.

2. Unless otherwise specified in the first and second big questions, the score of each question is only full or zero, and the score indicated at the right end of the third big question indicates that the candidate has correctly done this step.

3. When scoring, 1 is the basic unit for scoring or deduction.