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 68 31.9%
2 United States 67 31.5%
3 Ukraine 22 10.3%
4 Germany 22 10.3%
5 Netherlands 16 7.5%
6 Russia 6 2.8%
7 France 3 1.4%
8 Hong Kong 2 0.9%
9 Iran, Islamic Republic of 2 0.9%
10 Italy 2 0.9%
11 Japan 2 0.9%
12 Poland 1 0.5%