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 55 41.7%
2 United States 30 22.7%
3 Netherlands 10 7.6%
4 Russia 9 6.8%
5 France 9 6.8%
6 Germany 8 6.1%
7 Malaysia 4 3%
8 Czech Republic 2 1.5%
9 Singapore 2 1.5%
10 Sweden 1 0.8%
11 Hong Kong 1 0.8%
12 Macao 1 0.8%