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 31 33.3%
2 United States 27 29%
3 United Kingdom 12 12.9%
4 Russia 7 7.5%
5 France 5 5.4%
6 Czech Republic 2 2.2%
7 Latvia 2 2.2%
8 Ukraine 2 2.2%
9 Canada 1 1.1%
10 Germany 1 1.1%
11 Hong Kong 1 1.1%
12 India 1 1.1%
13 Korea, Republic of 1 1.1%