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 United States 30 42.9%
2 China 13 18.6%
3 Germany 12 17.1%
4 Japan 3 4.3%
5 Netherlands 3 4.3%
6 Romania 3 4.3%
7 United Kingdom 2 2.9%
8 Hungary 1 1.4%
9 Ireland 1 1.4%
10 France 1 1.4%
11 Belarus 1 1.4%