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 40 54.8%
2 Germany 13 17.8%
3 China 7 9.6%
4 Netherlands 3 4.1%
5 Romania 3 4.1%
6 United Kingdom 2 2.7%
7 Russia 1 1.4%
8 Peru 1 1.4%
9 1 1.4%
10 Hong Kong 1 1.4%
11 Korea, Republic of 1 1.4%