BPG致力于知识的发现和传播
Total Visits of This Article
2018 | 总访问次数
排名 国家/地区 数量 占比
1 China 19 34.5%
2 United States 13 23.6%
3 Germany 12 21.8%
4 India 3 5.5%
5 2 3.6%
6 France 1 1.8%
7 Japan 1 1.8%
8 Poland 1 1.8%
9 Slovakia 1 1.8%
10 Taiwan 1 1.8%
11 United Kingdom 1 1.8%