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 50.4%
2 United States 64 19.1%
3 Germany 36 10.7%
4 Netherlands 19 5.7%
5 Canada 14 4.2%
6 Hong Kong 8 2.4%
7 Japan 5 1.5%
8 Singapore 5 1.5%
9 India 4 1.2%
10 Portugal 3 0.9%
11 Russia 3 0.9%
12 Taiwan 3 0.9%
13 United Arab Emirates 1 0.3%
14 France 1 0.3%