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 54 35.5%
2 China 41 27%
3 Netherlands 24 15.8%
4 Germany 8 5.3%
5 Russia 6 3.9%
6 Canada 5 3.3%
7 Singapore 4 2.6%
8 Viet Nam 3 2%
9 Taiwan 2 1.3%
10 Hong Kong 2 1.3%
11 Czech Republic 2 1.3%
12 United Arab Emirates 1 0.7%