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 United States 37 33.3%
2 China 32 28.8%
3 Netherlands 12 10.8%
4 Germany 9 8.1%
5 Russia 6 5.4%
6 France 5 4.5%
7 Mexico 2 1.8%
8 United Arab Emirates 2 1.8%
9 Hong Kong 2 1.8%
10 Colombia 2 1.8%
11 Estonia 1 0.9%
12 Italy 1 0.9%