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 636 52.9%
2 United States 214 17.8%
3 Netherlands 162 13.5%
4 France 80 6.7%
5 Germany 63 5.2%
6 Canada 23 1.9%
7 Ireland 7 0.6%
8 Norway 4 0.3%
9 Hong Kong 3 0.2%
10 India 3 0.2%
11 Russia 2 0.2%
12 Korea, Republic of 2 0.2%
13 United Kingdom 2 0.2%
14 Moldova, Republic of 1 0.1%
15 Singapore 1 0.1%