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 51 57.3%
2 United States 10 11.2%
3 Netherlands 8 9%
4 Germany 7 7.9%
5 Canada 3 3.4%
6 Japan 3 3.4%
7 India 2 2.2%
8 Brazil 2 2.2%
9 Belgium 1 1.1%
10 France 1 1.1%
11 United Kingdom 1 1.1%