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 128 58.2%
2 United States 55 25%
3 Germany 17 7.7%
4 Canada 5 2.3%
5 Hong Kong 3 1.4%
6 Taiwan 3 1.4%
7 Korea, Republic of 2 0.9%
8 Belgium 2 0.9%
9 Estonia 1 0.5%
10 Netherlands 1 0.5%
11 Portugal 1 0.5%
12 Russia 1 0.5%
13 United Kingdom 1 0.5%