1, diversified problem-solving ideas. The mathematical content of 3 14 is close to the number three, and the problem-solving ideas are diverse and difficult, which requires a lot of brushing; There is still 3 15 chemistry to recite.

2. The average score line is low. The average score of 3 14 is low, and the average score of full marks 150 and 20 18 is 64.55; 3 15 chemical full score 150, 20 18 average score 83.