论文部分内容阅读
今年我国南方发生了百年未遇的冰雪天气,许多城市和地方的道路出现了严重的冰冻现象,不少人走路时不小心被摔倒,医院中老年人跌倒骨折病
This year there has been a snow and snow storm in southern China for a hundred years. Many roads in cities and places have experienced serious freezing phenomenon. Many people fall by accident when they are walking,