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 150 76.1%
2 United States 20 10.2%
3 Germany 7 3.6%
4 Korea, Republic of 7 3.6%
5 Hong Kong 3 1.5%
6 Senegal 2 1%
7 Singapore 2 1%
8 Turkey 2 1%
9 United Kingdom 2 1%
10 Macao 1 0.5%
11 Russia 1 0.5%