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 46 47.9%
2 Netherlands 13 13.5%
3 Canada 10 10.4%
4 United States 9 9.4%
5 Russia 5 5.2%
6 Germany 5 5.2%
7 Hong Kong 2 2.1%
8 Italy 2 2.1%
9 New Zealand 2 2.1%
10 Sweden 1 1%
11 Togo 1 1%