BPG致力于知识的发现和传播
Total Visits of This Article
2020 | 总访问次数
排名 国家/地区 数量 占比
1 China 53 39.3%
2 United States 31 23%
3 Germany 17 12.6%
4 Taiwan 12 8.9%
5 Hong Kong 11 8.1%
6 Canada 2 1.5%
7 United Kingdom 2 1.5%
8 Ukraine 1 0.7%
9 Viet Nam 1 0.7%
10 Japan 1 0.7%
11 Korea, Republic of 1 0.7%
12 Portugal 1 0.7%
13 Romania 1 0.7%
14 Russia 1 0.7%