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 85 50.3%
2 United States 40 23.7%
3 Netherlands 13 7.7%
4 France 10 5.9%
5 Germany 10 5.9%
6 Poland 3 1.8%
7 Russia 2 1.2%
8 Korea, Republic of 2 1.2%
9 Austria 1 0.6%
10 Norway 1 0.6%
11 India 1 0.6%
12 Taiwan 1 0.6%