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 355 53.7%
2 United States 135 20.4%
3 Netherlands 72 10.9%
4 Germany 57 8.6%
5 Canada 18 2.7%
6 France 5 0.8%
7 Ukraine 4 0.6%
8 Norway 3 0.5%
9 Philippines 2 0.3%
10 Italy 2 0.3%
11 Korea, Republic of 2 0.3%
12 Malaysia 1 0.2%
13 Hong Kong 1 0.2%
14 India 1 0.2%
15 Finland 1 0.2%
16 Sweden 1 0.2%
17 United Kingdom 1 0.2%