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 106 39.1%
2 China 81 29.9%
3 Netherlands 37 13.7%
4 Germany 23 8.5%
5 France 11 4.1%
6 Republic of Korea 3 1.1%
7 Romania 3 1.1%
8 United Kingdom 3 1.1%
9 Canada 1 0.4%
10 Saudi Arabia 1 0.4%
11 India 1 0.4%
12 Indonesia 1 0.4%