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 564 51.9%
2 United States 155 14.3%
3 Netherlands 150 13.8%
4 France 80 7.4%
5 Germany 63 5.8%
6 Hong Kong 20 1.8%
7 Canada 18 1.7%
8 Korea, Republic of 14 1.3%
9 Turkey 6 0.6%
10 India 5 0.5%
11 Norway 3 0.3%
12 Ukraine 3 0.3%
13 Barbados 2 0.2%
14 Russia 1 0.1%
15 Sweden 1 0.1%
16 Japan 1 0.1%