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 74 42.8%
2 China 32 18.5%
3 United Kingdom 22 12.7%
4 Russia 13 7.5%
5 Germany 10 5.8%
6 France 6 3.5%
7 Japan 4 2.3%
8 Taiwan 4 2.3%
9 Ukraine 2 1.2%
10 Moldova, Republic of 2 1.2%
11 Canada 2 1.2%
12 Estonia 1 0.6%
13 Netherlands 1 0.6%