BPG致力于知识的发现和传播
Total Visits of This Article
2021 | 总访问次数
排名 国家/地区 数量 占比
1 China 56 39.2%
2 South Africa 24 16.8%
3 United States 22 15.4%
4 Germany 17 11.9%
5 Netherlands 7 4.9%
6 India 4 2.8%
7 Korea, Republic of 3 2.1%
8 Hong Kong 3 2.1%
9 France 2 1.4%
10 Russia 2 1.4%
11 Thailand 2 1.4%
12 Romania 1 0.7%