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 365 46.5%
2 United States 229 29.2%
3 Netherlands 109 13.9%
4 Germany 43 5.5%
5 Canada 12 1.5%
6 India 6 0.8%
7 Singapore 6 0.8%
8 France 5 0.6%
9 Ukraine 3 0.4%
10 Switzerland 2 0.3%
11 Hong Kong 2 0.3%
12 Mauritius 1 0.1%
13 Ecuador 1 0.1%
14 Russia 1 0.1%