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 172 56.4%
2 United States 50 16.4%
3 Germany 39 12.8%
4 Canada 18 5.9%
5 Hong Kong 8 2.6%
6 Taiwan 5 1.6%
7 Belarus 4 1.3%
8 Belgium 2 0.7%
9 Japan 2 0.7%
10 Romania 1 0.3%
11 Russia 1 0.3%
12 Singapore 1 0.3%
13 1 0.3%
14 Turkey 1 0.3%