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 Germany 30 32.3%
2 China 22 23.7%
3 United States 22 23.7%
4 United Kingdom 5 5.4%
5 France 4 4.3%
6 Netherlands 4 4.3%
7 India 2 2.2%
8 Korea, Republic of 2 2.2%
9 Russia 1 1.1%
10 Hong Kong 1 1.1%