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 61 51.3%
2 United States 23 19.3%
3 Korea, Republic of 11 9.2%
4 Netherlands 4 3.4%
5 France 4 3.4%
6 Taiwan 4 3.4%
7 Germany 3 2.5%
8 Czech Republic 2 1.7%
9 Russia 2 1.7%
10 Switzerland 2 1.7%
11 Philippines 1 0.8%
12 Italy 1 0.8%
13 Canada 1 0.8%