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 180 64.5%
2 United States 42 15.1%
3 Germany 32 11.5%
4 Australia 4 1.4%
5 Taiwan 3 1.1%
6 Ukraine 2 0.7%
7 United Kingdom 2 0.7%
8 South Africa 2 0.7%
9 Sweden 2 0.7%
10 Austria 2 0.7%
11 France 2 0.7%
12 Hong Kong 2 0.7%
13 India 2 0.7%
14 Macao 1 0.4%
15 Canada 1 0.4%