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 169 61.5%
2 United States 43 15.6%
3 Germany 30 10.9%
4 Canada 9 3.3%
5 Netherlands 9 3.3%
6 Australia 3 1.1%
7 Belgium 2 0.7%
8 Czech Republic 2 0.7%
9 Morocco 2 0.7%
10 Ireland 2 0.7%
11 United Kingdom 2 0.7%
12 Singapore 1 0.4%
13 Macao 1 0.4%