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 195 70.1%
2 Germany 32 11.5%
3 United States 28 10.1%
4 Russia 7 2.5%
5 Netherlands 3 1.1%
6 Hong Kong 3 1.1%
7 Ireland 3 1.1%
8 Korea, Republic of 2 0.7%
9 Singapore 2 0.7%
10 Sweden 2 0.7%
11 Canada 1 0.4%