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 United States 158 34%
2 China 132 28.4%
3 Netherlands 67 14.4%
4 Germany 43 9.2%
5 France 20 4.3%
6 Hong Kong 13 2.8%
7 Canada 8 1.7%
8 Portugal 7 1.5%
9 4 0.9%
10 Norway 4 0.9%
11 Ukraine 3 0.6%
12 Taiwan 2 0.4%
13 Viet Nam 2 0.4%
14 Latvia 2 0.4%