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 166 59.7%
2 United States 44 15.8%
3 Germany 40 14.4%
4 Canada 13 4.7%
5 France 3 1.1%
6 Netherlands 3 1.1%
7 Russia 3 1.1%
8 United Kingdom 3 1.1%
9 Singapore 1 0.4%
10 India 1 0.4%
11 Belgium 1 0.4%