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 80 51.9%
2 United States 18 11.7%
3 Germany 15 9.7%
4 Netherlands 14 9.1%
5 Russia 9 5.8%
6 Singapore 6 3.9%
7 South Africa 3 1.9%
8 India 3 1.9%
9 Czech Republic 2 1.3%
10 France 2 1.3%
11 Malaysia 1 0.6%
12 Brazil 1 0.6%