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 244 56.6%
2 United States 100 23.2%
3 Germany 35 8.1%
4 Netherlands 18 4.2%
5 Canada 11 2.6%
6 Hong Kong 8 1.9%
7 Colombia 3 0.7%
8 Thailand 3 0.7%
9 Singapore 2 0.5%
10 Bulgaria 2 0.5%
11 Korea, Republic of 1 0.2%
12 Romania 1 0.2%
13 Russia 1 0.2%
14 Taiwan 1 0.2%
15 United Kingdom 1 0.2%