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 272 65.9%
2 United States 56 13.6%
3 Germany 33 8%
4 Canada 14 3.4%
5 Hong Kong 11 2.7%
6 Netherlands 6 1.5%
7 Russia 4 1%
8 Taiwan 4 1%
9 United Kingdom 3 0.7%
10 France 3 0.7%
11 Australia 2 0.5%
12 South Africa 2 0.5%
13 Japan 2 0.5%
14 Algeria 1 0.2%