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 339 49.9%
2 United States 136 20%
3 Netherlands 103 15.2%
4 Germany 59 8.7%
5 Canada 19 2.8%
6 France 7 1%
7 Ukraine 5 0.7%
8 Hong Kong 4 0.6%
9 Moldova, Republic of 2 0.3%
10 Taiwan 2 0.3%
11 United Kingdom 1 0.1%
12 Sweden 1 0.1%
13 Finland 1 0.1%