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 139 49.5%
2 United States 44 15.7%
3 Germany 33 11.7%
4 Canada 24 8.5%
5 France 21 7.5%
6 Ireland 7 2.5%
7 United Kingdom 4 1.4%
8 Singapore 3 1.1%
9 Moldova, Republic of 2 0.7%
10 Netherlands 1 0.4%
11 Taiwan 1 0.4%
12 Turkey 1 0.4%
13 Japan 1 0.4%