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 115 56.7%
2 United States 48 23.6%
3 Netherlands 13 6.4%
4 Germany 9 4.4%
5 France 5 2.5%
6 Russia 4 2%
7 Czech Republic 3 1.5%
8 Malaysia 2 1%
9 Thailand 2 1%
10 Sweden 1 0.5%
11 Australia 1 0.5%