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 41 40.6%
2 China 19 18.8%
3 United Kingdom 17 16.8%
4 Russia 8 7.9%
5 Taiwan 2 2%
6 Ukraine 2 2%
7 India 2 2%
8 Moldova, Republic of 2 2%
9 Netherlands 2 2%
10 France 2 2%
11 Australia 2 2%
12 Germany 1 1%
13 Hong Kong 1 1%