BPG致力于知识的发现和传播
Total Visits of This Article
2020 | 总访问次数
排名 国家/地区 数量 占比
1 China 27 39.7%
2 Netherlands 14 20.6%
3 France 9 13.2%
4 United States 8 11.8%
5 Germany 3 4.4%
6 Taiwan 3 4.4%
7 United Kingdom 2 2.9%
8 Russia 1 1.5%
9 Moldova, Republic of 1 1.5%