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 58 59.8%
2 China 27 27.8%
3 Germany 4 4.1%
4 Netherlands 2 2.1%
5 United Kingdom 2 2.1%
6 Belgium 1 1%
7 France 1 1%
8 Republic of Korea 1 1%
9 Saudi Arabia 1 1%