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 150 54.7%
2 United States 62 22.6%
3 Germany 45 16.4%
4 Canada 3 1.1%
5 Brazil 2 0.7%
6 Hong Kong 2 0.7%
7 Luxembourg 2 0.7%
8 United Kingdom 2 0.7%
9 Finland 2 0.7%
10 France 1 0.4%
11 Mauritius 1 0.4%
12 Switzerland 1 0.4%
13 Czech Republic 1 0.4%