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 46 30.5%
2 United States 28 18.5%
3 Netherlands 23 15.2%
4 Poland 20 13.2%
5 Germany 8 5.3%
6 Singapore 5 3.3%
7 United Kingdom 4 2.6%
8 Moldova, Republic of 3 2%
9 Russia 3 2%
10 France 3 2%
11 Canada 3 2%
12 Chile 2 1.3%
13 Korea, Republic of 2 1.3%
14 South Africa 1 0.7%