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 189 50.4%
2 United States 96 25.6%
3 Germany 28 7.5%
4 France 18 4.8%
5 Netherlands 16 4.3%
6 Canada 9 2.4%
7 India 5 1.3%
8 Hong Kong 4 1.1%
9 Ireland 2 0.5%
10 Japan 2 0.5%
11 Philippines 2 0.5%
12 Russia 1 0.3%
13 Ukraine 1 0.3%
14 Brazil 1 0.3%
15 Denmark 1 0.3%