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 185 75.2%
2 United States 29 11.8%
3 Germany 10 4.1%
4 Hong Kong 6 2.4%
5 Portugal 6 2.4%
6 3 1.2%
7 Senegal 2 0.8%
8 Sweden 1 0.4%
9 Taiwan 1 0.4%
10 Australia 1 0.4%
11 Canada 1 0.4%
12 Russia 1 0.4%