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 90 50.8%
2 United States 35 19.8%
3 Germany 18 10.2%
4 Kenya 8 4.5%
5 Korea, Republic of 7 4%
6 Netherlands 7 4%
7 France 4 2.3%
8 Russia 4 2.3%
9 Taiwan 2 1.1%
10 Hong Kong 1 0.6%
11 Romania 1 0.6%