.1.2.3.4.5.6.7.8.9.10.11.12.13.14.15.16.17.18.19.20.21.22.23.24.25.26.27.28.29.30.31.32.33.34.35.36.37.38.39.40.41.42.43.44.45.46.47.48.49.50.51.52.53.54.55.56.57.58.59.60.61.62.63.64.65.66.67.68.69.70.71.72.73.74.75.76.77.78.79.80.81.82.83.84.85后面内容直接删除就行资料可以编辑修改使用资料可以编辑修改使用资料仅供参考，实际情况实际分析.86The user can demonstrate on a projector or computer,or print the presentation and make it into a film to be used in a wider field
