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 184 44.2%
2 United States 157 37.7%
3 Germany 47 11.3%
4 Hong Kong 7 1.7%
5 Malaysia 4 1%
6 Canada 3 0.7%
7 India 3 0.7%
8 Luxembourg 2 0.5%
9 Netherlands 2 0.5%
10 Taiwan 2 0.5%
11 Turkey 1 0.2%
12 Ukraine 1 0.2%
13 Russia 1 0.2%
14 Indonesia 1 0.2%
15 Italy 1 0.2%