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
1 709 85.8%
2 United States 42 5.1%
3 China 38 4.6%
4 Germany 15 1.8%
5 France 7 0.8%
6 United Kingdom 4 0.5%
7 Russia 2 0.2%
8 India 2 0.2%
9 Netherlands 1 0.1%
10 Hong Kong 1 0.1%
11 Hungary 1 0.1%
12 Croatia 1 0.1%
13 Egypt 1 0.1%
14 Singapore 1 0.1%
15 Ukraine 1 0.1%