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 148 47.9%
2 United States 64 20.7%
3 Germany 38 12.3%
4 Netherlands 29 9.4%
5 Canada 12 3.9%
6 Taiwan 3 1%
7 Ireland 2 0.6%
8 Korea, Republic of 2 0.6%
9 Macao 2 0.6%
10 Australia 2 0.6%
11 Russia 2 0.6%
12 Serbia 2 0.6%
13 Singapore 2 0.6%
14 India 1 0.3%