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 Germany 25 33.8%
2 China 13 17.6%
3 United States 13 17.6%
4 7 9.5%
5 Canada 4 5.4%
6 Republic of Korea 3 4.1%
7 Russia 2 2.7%
8 United Kingdom 2 2.7%
9 Belgium 2 2.7%
10 France 2 2.7%
11 Romania 1 1.4%