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 45 46.4%
2 China 21 21.6%
3 Germany 14 14.4%
4 Japan 5 5.2%
5 Senegal 3 3.1%
6 Ivory Coast 3 3.1%
7 France 2 2.1%
8 Republic of Korea 2 2.1%
9 Taiwan 1 1%
10 Canada 1 1%