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 318 48.4%
2 United States 119 18.1%
3 Netherlands 108 16.4%
4 Germany 54 8.2%
5 Canada 21 3.2%
6 Korea, Republic of 10 1.5%
7 France 8 1.2%
8 Ireland 6 0.9%
9 Israel 3 0.5%
10 Singapore 2 0.3%
11 India 2 0.3%
12 Belgium 2 0.3%
13 Austria 1 0.2%
14 Czech Republic 1 0.2%
15 Taiwan 1 0.2%
16 Norway 1 0.2%