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 387 44%
2 United States 234 26.6%
3 Netherlands 97 11%
4 Germany 84 9.6%
5 Hong Kong 29 3.3%
6 Canada 23 2.6%
7 France 6 0.7%
8 Taiwan 5 0.6%
9 Australia 4 0.5%
10 Russia 2 0.2%
11 Serbia 2 0.2%
12 Singapore 2 0.2%
13 Ireland 2 0.2%
14 Ukraine 1 0.1%
15 India 1 0.1%