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 52 36.1%
2 United States 25 17.4%
3 France 17 11.8%
4 Netherlands 15 10.4%
5 Germany 14 9.7%
6 Taiwan 11 7.6%
7 Russia 5 3.5%
8 Macao 2 1.4%
9 Czech Republic 2 1.4%
10 United Arab Emirates 1 0.7%