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 208 61.9%
2 United States 58 17.3%
3 Germany 25 7.4%
4 Canada 22 6.5%
5 Russia 5 1.5%
6 Singapore 4 1.2%
7 Malaysia 4 1.2%
8 Hong Kong 3 0.9%
9 Ireland 2 0.6%
10 Japan 1 0.3%
11 Poland 1 0.3%
12 Iran, Islamic Republic of 1 0.3%
13 Ukraine 1 0.3%
14 United Kingdom 1 0.3%