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 178 63.8%
2 United States 43 15.4%
3 Germany 31 11.1%
4 France 4 1.4%
5 Taiwan 4 1.4%
6 United Kingdom 4 1.4%
7 Singapore 3 1.1%
8 Ireland 2 0.7%
9 Korea, Republic of 2 0.7%
10 Romania 2 0.7%
11 2 0.7%
12 Sweden 2 0.7%
13 Russia 1 0.4%
14 Slovakia 1 0.4%