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 499 61.4%
2 United States 122 15%
3 Netherlands 78 9.6%
4 Germany 60 7.4%
5 Canada 14 1.7%
6 France 7 0.9%
7 Hong Kong 6 0.7%
8 Japan 5 0.6%
9 Taiwan 5 0.6%
10 Sweden 4 0.5%
11 Norway 3 0.4%
12 India 3 0.4%
13 Italy 2 0.2%
14 Belgium 2 0.2%
15 Hungary 1 0.1%
16 Korea, Republic of 1 0.1%
17 Morocco 1 0.1%