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 478 44.1%
2 United States 240 22.1%
3 Netherlands 194 17.9%
4 Germany 91 8.4%
5 Canada 27 2.5%
6 France 25 2.3%
7 Taiwan 13 1.2%
8 Australia 5 0.5%
9 Japan 4 0.4%
10 United Kingdom 3 0.3%
11 Singapore 2 0.2%
12 Hong Kong 2 0.2%
13 Czech Republic 1 0.1%