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 United States 43 35.5%
2 China 24 19.8%
3 Netherlands 22 18.2%
4 Germany 7 5.8%
5 Ireland 7 5.8%
6 Russia 4 3.3%
7 Taiwan 4 3.3%
8 Hong Kong 3 2.5%
9 Korea, Republic of 2 1.7%
10 France 2 1.7%
11 Chile 1 0.8%
12 Czech Republic 1 0.8%
13 India 1 0.8%