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 82 43.9%
2 United States 55 29.4%
3 Germany 18 9.6%
4 Taiwan 16 8.6%
5 Canada 5 2.7%
6 Hong Kong 4 2.1%
7 France 2 1.1%
8 Russia 2 1.1%
9 Bosnia and Herzegovina 1 0.5%
10 Netherlands 1 0.5%
11 Portugal 1 0.5%