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 632 60.2%
2 United States 169 16.1%
3 Netherlands 147 14%
4 Germany 46 4.4%
5 Canada 16 1.5%
6 Russia 13 1.2%
7 Brazil 6 0.6%
8 France 4 0.4%
9 Hong Kong 4 0.4%
10 India 4 0.4%
11 Japan 4 0.4%
12 Korea, Republic of 3 0.3%
13 United Arab Emirates 1 0.1%
14 Norway 1 0.1%