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 82 56.9%
2 United States 21 14.6%
3 Netherlands 11 7.6%
4 Germany 5 3.5%
5 Canada 5 3.5%
6 Sweden 5 3.5%
7 Hong Kong 4 2.8%
8 Russia 4 2.8%
9 Singapore 2 1.4%
10 Japan 2 1.4%
11 Korea, Republic of 1 0.7%
12 France 1 0.7%
13 United Kingdom 1 0.7%