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 50 29.1%
2 China 45 26.2%
3 Netherlands 32 18.6%
4 Germany 18 10.5%
5 Japan 7 4.1%
6 France 5 2.9%
7 India 4 2.3%
8 Czech Republic 3 1.7%
9 Canada 2 1.2%
10 Hong Kong 2 1.2%
11 Russia 2 1.2%
12 Taiwan 1 0.6%
13 Malaysia 1 0.6%