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 59%
2 United States 54 18.6%
3 Germany 44 15.2%
4 Russia 6 2.1%
5 Canada 4 1.4%
6 Turkey 3 1%
7 United Kingdom 2 0.7%
8 Singapore 2 0.7%
9 Netherlands 2 0.7%
10 Australia 1 0.3%
11 France 1 0.3%