BPG致力于知识的发现和传播
Total Visits of This Article
2021 | 总访问次数
排名 国家/地区 数量 占比
1 China 268 66.2%
2 United States 72 17.8%
3 Germany 35 8.6%
4 Canada 12 3%
5 France 5 1.2%
6 Hong Kong 3 0.7%
7 2 0.5%
8 Serbia 2 0.5%
9 Singapore 1 0.2%
10 Taiwan 1 0.2%
11 Australia 1 0.2%
12 India 1 0.2%
13 Latvia 1 0.2%
14 Russia 1 0.2%