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 342 53.5%
2 United States 119 18.6%
3 Netherlands 94 14.7%
4 Germany 30 4.7%
5 Canada 12 1.9%
6 United Kingdom 12 1.9%
7 Viet Nam 6 0.9%
8 Singapore 6 0.9%
9 France 5 0.8%
10 Taiwan 4 0.6%
11 Austria 2 0.3%
12 Hong Kong 2 0.3%
13 Korea, Republic of 2 0.3%
14 Portugal 2 0.3%
15 Russia 1 0.2%