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 118 60.8%
2 United States 28 14.4%
3 Germany 15 7.7%
4 Netherlands 8 4.1%
5 Russia 6 3.1%
6 Taiwan 5 2.6%
7 France 4 2.1%
8 Czech Republic 2 1%
9 India 2 1%
10 United Kingdom 2 1%
11 South Africa 2 1%
12 Poland 1 0.5%
13 Canada 1 0.5%