BPG致力于知识的发现和传播
Total Visits of This Article
2019 | 总访问次数
排名 国家/地区 数量 占比
1 14 29.2%
2 United States 9 18.8%
3 China 6 12.5%
4 Russia 5 10.4%
5 United Kingdom 4 8.3%
6 India 3 6.2%
7 Germany 2 4.2%
8 Ukraine 2 4.2%
9 Taiwan 1 2.1%
10 Czech Republic 1 2.1%
11 France 1 2.1%