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 50 34.7%
2 China 38 26.4%
3 Netherlands 17 11.8%
4 Russia 13 9%
5 Korea, Republic of 7 4.9%
6 France 4 2.8%
7 Germany 4 2.8%
8 Canada 3 2.1%
9 Syrian Arab Republic 2 1.4%
10 South Africa 2 1.4%
11 Sweden 1 0.7%
12 Hong Kong 1 0.7%
13 Israel 1 0.7%
14 Japan 1 0.7%