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 191 55.7%
2 United States 71 20.7%
3 Germany 32 9.3%
4 Canada 14 4.1%
5 Hong Kong 6 1.7%
6 Japan 4 1.2%
7 Taiwan 4 1.2%
8 Netherlands 4 1.2%
9 Russia 4 1.2%
10 Norway 2 0.6%
11 United Kingdom 2 0.6%
12 Kazakhstan 2 0.6%
13 Macao 2 0.6%
14 Malaysia 2 0.6%
15 Hungary 1 0.3%
16 France 1 0.3%
17 Seychelles 1 0.3%