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 27 28.7%
2 United States 19 20.2%
3 Germany 15 16%
4 Netherlands 11 11.7%
5 India 4 4.3%
6 Italy 3 3.2%
7 Mexico 3 3.2%
8 Brazil 3 3.2%
9 Canada 2 2.1%
10 France 2 2.1%
11 Norway 2 2.1%
12 Russia 2 2.1%
13 Slovenia 1 1.1%