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 51 26%
2 United States 46 23.5%
3 Germany 25 12.8%
4 Netherlands 17 8.7%
5 Ireland 11 5.6%
6 Hong Kong 10 5.1%
7 Korea, Republic of 9 4.6%
8 France 7 3.6%
9 India 6 3.1%
10 Sweden 6 3.1%
11 Taiwan 6 3.1%
12 Mongolia 2 1%