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 108 52.4%
2 United States 21 10.2%
3 Netherlands 20 9.7%
4 France 16 7.8%
5 Germany 10 4.9%
6 Canada 10 4.9%
7 Taiwan 6 2.9%
8 Czech Republic 5 2.4%
9 Russia 4 1.9%
10 Korea, Republic of 4 1.9%
11 Hong Kong 1 0.5%
12 Austria 1 0.5%