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 508 48.7%
2 United States 235 22.5%
3 Netherlands 148 14.2%
4 Germany 76 7.3%
5 France 34 3.3%
6 Canada 21 2%
7 Singapore 4 0.4%
8 United Kingdom 3 0.3%
9 Ireland 3 0.3%
10 Korea, Republic of 2 0.2%
11 Hong Kong 2 0.2%
12 India 2 0.2%
13 Armenia 2 0.2%
14 Denmark 1 0.1%
15 Switzerland 1 0.1%
16 Taiwan 1 0.1%
17 Philippines 1 0.1%