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 184 48.8%
2 United States 141 37.4%
3 Germany 18 4.8%
4 Canada 4 1.1%
5 Singapore 4 1.1%
6 Taiwan 4 1.1%
7 Netherlands 3 0.8%
8 Russia 3 0.8%
9 Brazil 3 0.8%
10 India 3 0.8%
11 Hong Kong 2 0.5%
12 France 2 0.5%
13 Peru 1 0.3%
14 United Kingdom 1 0.3%
15 Indonesia 1 0.3%
16 Italy 1 0.3%
17 Colombia 1 0.3%
18 Dominican Republic 1 0.3%