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 324 55.1%
2 United States 160 27.2%
3 Canada 32 5.4%
4 Germany 32 5.4%
5 Hong Kong 14 2.4%
6 Russia 6 1%
7 Singapore 5 0.9%
8 Taiwan 4 0.7%
9 India 3 0.5%
10 Italy 2 0.3%
11 Netherlands 2 0.3%
12 Finland 1 0.2%
13 Ireland 1 0.2%
14 United Kingdom 1 0.2%
15 Switzerland 1 0.2%