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 186 60.8%
2 Germany 45 14.7%
3 United States 39 12.7%
4 Hong Kong 9 2.9%
5 United Kingdom 6 2%
6 Taiwan 5 1.6%
7 Russia 3 1%
8 Singapore 2 0.7%
9 Netherlands 2 0.7%
10 Romania 2 0.7%
11 Finland 2 0.7%
12 Australia 2 0.7%
13 Canada 2 0.7%
14 Korea, Republic of 1 0.3%