BPG致力于知识的发现和传播
Total Visits of This Article
2020 | 总访问次数
排名 国家/地区 数量 占比
1 China 29 36.2%
2 United States 17 21.2%
3 Germany 12 15%
4 France 5 6.2%
5 Netherlands 3 3.8%
6 Canada 3 3.8%
7 India 2 2.5%
8 Norway 2 2.5%
9 Peru 2 2.5%
10 2 2.5%
11 Brazil 2 2.5%
12 Spain 1 1.2%