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 71 42.8%
2 United States 34 20.5%
3 Germany 15 9%
4 Kenya 9 5.4%
5 Netherlands 8 4.8%
6 France 7 4.2%
7 Hong Kong 6 3.6%
8 Korea, Republic of 5 3%
9 Canada 4 2.4%
10 United Kingdom 3 1.8%
11 Romania 1 0.6%
12 Russia 1 0.6%
13 Sweden 1 0.6%
14 Taiwan 1 0.6%