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 50.8%
2 United States 57 17.1%
3 Germany 47 14.1%
4 Netherlands 31 9.3%
5 Canada 5 1.5%
6 Russia 5 1.5%
7 Spain 3 0.9%
8 Hong Kong 3 0.9%
9 Malaysia 3 0.9%
10 Norway 2 0.6%
11 Australia 2 0.6%
12 France 2 0.6%
13 United Kingdom 2 0.6%
14 Taiwan 1 0.3%
15 Singapore 1 0.3%