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 197 45.6%
2 United States 157 36.3%
3 Netherlands 19 4.4%
4 Germany 14 3.2%
5 Hong Kong 12 2.8%
6 Korea, Republic of 6 1.4%
7 Canada 6 1.4%
8 Philippines 4 0.9%
9 France 4 0.9%
10 Switzerland 3 0.7%
11 Taiwan 3 0.7%
12 Russia 2 0.5%
13 Singapore 2 0.5%
14 Brazil 1 0.2%
15 Burkina Faso 1 0.2%
16 Turkey 1 0.2%