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 United States 48 44.4%
2 China 22 20.4%
3 United Kingdom 18 16.7%
4 Russia 11 10.2%
5 France 3 2.8%
6 Australia 2 1.9%
7 Ukraine 1 0.9%
8 Hong Kong 1 0.9%
9 Moldova, Republic of 1 0.9%
10 Czech Republic 1 0.9%