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 276 70.1%
2 United States 49 12.4%
3 Germany 41 10.4%
4 Canada 15 3.8%
5 Macao 3 0.8%
6 Russia 3 0.8%
7 Netherlands 2 0.5%
8 Indonesia 2 0.5%
9 Serbia 1 0.3%
10 Singapore 1 0.3%
11 Turkmenistan 1 0.3%