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 China 54 58.1%
2 Germany 12 12.9%
3 United States 12 12.9%
4 Japan 6 6.5%
5 Russia 3 3.2%
6 Republic of Korea 2 2.2%
7 Senegal 1 1.1%
8 United Kingdom 1 1.1%
9 Korea, Republic of 1 1.1%
10 Hong Kong 1 1.1%