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 199 61.8%
2 United States 51 15.8%
3 Germany 36 11.2%
4 Canada 20 6.2%
5 Colombia 2 0.6%
6 Hong Kong 2 0.6%
7 Ireland 2 0.6%
8 Italy 2 0.6%
9 Malaysia 2 0.6%
10 Russia 2 0.6%
11 Sweden 1 0.3%
12 Turkey 1 0.3%
13 Romania 1 0.3%
14 Australia 1 0.3%