See the answer will be like this, you know.
The idea of solving the problem ≠ the answer, in fact, 7 is for
(2) paving the way, (1) is not the purpose.
This question is quite difficult, when Jiangxi college entrance examination.
Second, the province is required to score 2 people.
(2 points for one person, 65438+ 0 point for one person) The remaining hundreds of thousands of points are all 0 points.
It's basically a waste question. I once asked the proposer Tao Pingsheng's thoughts face to face, and he was a little fooled, so I guess I don't want to mention this topic.