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 49 40.5%
2 United States 38 31.4%
3 United Kingdom 18 14.9%
4 Russia 3 2.5%
5 France 3 2.5%
6 India 2 1.7%
7 Poland 2 1.7%
8 Japan 1 0.8%
9 Moldova, Republic of 1 0.8%
10 Netherlands 1 0.8%
11 Hong Kong 1 0.8%
12 Czech Republic 1 0.8%
13 Estonia 1 0.8%