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 171 58.2%
2 United States 66 22.4%
3 Germany 30 10.2%
4 Russia 6 2%
5 Singapore 5 1.7%
6 Ireland 5 1.7%
7 Hong Kong 4 1.4%
8 Canada 2 0.7%
9 Lao People's Democratic Republic 2 0.7%
10 United Arab Emirates 2 0.7%
11 Austria 1 0.3%