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 266 64.6%
2 United States 67 16.3%
3 Germany 39 9.5%
4 Canada 13 3.2%
5 Ireland 7 1.7%
6 Taiwan 4 1%
7 Ukraine 3 0.7%
8 Turkmenistan 2 0.5%
9 Netherlands 2 0.5%
10 Singapore 2 0.5%
11 Australia 2 0.5%
12 Hong Kong 2 0.5%
13 India 1 0.2%
14 Austria 1 0.2%
15 Viet Nam 1 0.2%