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 397 69.8%
2 United States 93 16.3%
3 Germany 35 6.2%
4 Canada 13 2.3%
5 Russia 5 0.9%
6 Italy 4 0.7%
7 Japan 4 0.7%
8 Singapore 3 0.5%
9 Australia 3 0.5%
10 Hong Kong 2 0.4%
11 Macao 2 0.4%
12 Uzbekistan 2 0.4%
13 Taiwan 2 0.4%
14 Ukraine 2 0.4%
15 United Kingdom 1 0.2%
16 Sweden 1 0.2%