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 154 56.2%
2 United States 48 17.5%
3 Germany 32 11.7%
4 Canada 13 4.7%
5 Hong Kong 8 2.9%
6 Taiwan 6 2.2%
7 Singapore 4 1.5%
8 Lithuania 3 1.1%
9 Netherlands 2 0.7%
10 United Kingdom 2 0.7%
11 Bulgaria 1 0.4%
12 Russia 1 0.4%