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 160 60.4%
2 United States 43 16.2%
3 Germany 38 14.3%
4 Canada 11 4.2%
5 Hong Kong 3 1.1%
6 Russia 2 0.8%
7 Singapore 2 0.8%
8 Turkey 2 0.8%
9 Bulgaria 2 0.8%
10 Austria 1 0.4%
11 France 1 0.4%