BPG致力于知识的发现和传播
Total Visits of This Article
2020 | 总访问次数
排名 国家/地区 数量 占比
1 United States 26 35.1%
2 China 12 16.2%
3 Germany 12 16.2%
4 France 10 13.5%
5 Taiwan 6 8.1%
6 Brazil 3 4.1%
7 Canada 2 2.7%
8 Ghana 1 1.4%
9 Hong Kong 1 1.4%
10 Korea, Republic of 1 1.4%