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 42 48.3%
2 China 14 16.1%
3 United Kingdom 11 12.6%
4 Russia 7 8%
5 Ukraine 2 2.3%
6 Czech Republic 2 2.3%
7 India 2 2.3%
8 Moldova, Republic of 1 1.1%
9 Netherlands 1 1.1%
10 Algeria 1 1.1%
11 Australia 1 1.1%
12 France 1 1.1%
13 Germany 1 1.1%
14 Hong Kong 1 1.1%