BPG致力于知识的发现和传播
Total Visits of This Article
2019 | 总访问次数
排名 国家/地区 数量 占比
1 101 37%
2 United States 69 25.3%
3 China 63 23.1%
4 Germany 16 5.9%
5 France 10 3.7%
6 Europe 4 1.5%
7 Canada 3 1.1%
8 Norway 2 0.7%
9 Philippines 1 0.4%
10 Taiwan 1 0.4%
11 India 1 0.4%
12 Korea, Republic of 1 0.4%
13 Brazil 1 0.4%