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 226 50.8%
2 United States 127 28.5%
3 Germany 28 6.3%
4 Canada 25 5.6%
5 Hong Kong 7 1.6%
6 Netherlands 6 1.3%
7 Russia 4 0.9%
8 Japan 3 0.7%
9 Bulgaria 3 0.7%
10 Australia 3 0.7%
11 United Kingdom 3 0.7%
12 Serbia 2 0.4%
13 Uzbekistan 2 0.4%
14 France 2 0.4%
15 Singapore 1 0.2%
16 Taiwan 1 0.2%
17 Brazil 1 0.2%
18 Korea, Republic of 1 0.2%