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 United States 42 36.8%
2 China 25 21.9%
3 France 11 9.6%
4 Germany 11 9.6%
5 Netherlands 10 8.8%
6 Taiwan 4 3.5%
7 Norway 3 2.6%
8 Ukraine 2 1.8%
9 Singapore 2 1.8%
10 Viet Nam 1 0.9%
11 United Kingdom 1 0.9%
12 Czech Republic 1 0.9%
13 Russia 1 0.9%