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 62 42.2%
2 United States 42 28.6%
3 Germany 14 9.5%
4 Hong Kong 10 6.8%
5 Portugal 6 4.1%
6 3 2%
7 Senegal 2 1.4%
8 Canada 2 1.4%
9 Taiwan 1 0.7%
10 Russia 1 0.7%
11 Australia 1 0.7%
12 France 1 0.7%
13 Netherlands 1 0.7%
14 Nigeria 1 0.7%