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 Netherlands 18 24%
2 United States 17 22.7%
3 China 16 21.3%
4 Germany 7 9.3%
5 United Kingdom 6 8%
6 Taiwan 5 6.7%
7 Hong Kong 3 4%
8 Moldova, Republic of 1 1.3%
9 France 1 1.3%
10 Russia 1 1.3%