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 157 50.5%
2 United States 58 18.6%
3 Germany 41 13.2%
4 Canada 26 8.4%
5 Hong Kong 10 3.2%
6 Russia 6 1.9%
7 Singapore 3 1%
8 United Kingdom 2 0.6%
9 Italy 2 0.6%
10 Moldova, Republic of 2 0.6%
11 2 0.6%
12 France 2 0.6%