BPG致力于知识的发现和传播
Total Visits of This Article
2021 | 总访问次数
排名 国家/地区 数量 占比
1 China 193 60.3%
2 United States 51 15.9%
3 Germany 42 13.1%
4 Canada 14 4.4%
5 France 3 0.9%
6 Netherlands 3 0.9%
7 Ukraine 3 0.9%
8 Moldova, Republic of 2 0.6%
9 Turkey 2 0.6%
10 Philippines 2 0.6%
11 Russia 1 0.3%
12 Singapore 1 0.3%
13 Austria 1 0.3%
14 Hungary 1 0.3%
15 United Kingdom 1 0.3%