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 50 36.2%
2 United States 23 16.7%
3 Germany 17 12.3%
4 South Africa 16 11.6%
5 Netherlands 13 9.4%
6 India 7 5.1%
7 Hong Kong 6 4.3%
8 Azerbaijan 2 1.4%
9 Taiwan 2 1.4%
10 Singapore 1 0.7%
11 France 1 0.7%