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 18 36.7%
2 Germany 12 24.5%
3 Netherlands 5 10.2%
4 China 5 10.2%
5 Romania 3 6.1%
6 Spain 1 2%
7 United Kingdom 1 2%
8 Republic of Korea 1 2%
9 India 1 2%
10 Iran 1 2%
11 Ireland 1 2%