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 228 68.3%
2 United States 49 14.7%
3 Germany 37 11.1%
4 Ireland 5 1.5%
5 Netherlands 4 1.2%
6 Russia 2 0.6%
7 Belarus 2 0.6%
8 Iran, Islamic Republic of 2 0.6%
9 United Kingdom 2 0.6%
10 Hong Kong 1 0.3%
11 Singapore 1 0.3%
12 Japan 1 0.3%