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 53 54.1%
2 Netherlands 16 16.3%
3 United States 11 11.2%
4 France 6 6.1%
5 Germany 5 5.1%
6 Taiwan 2 2%
7 Australia 2 2%
8 Thailand 1 1%
9 Russia 1 1%
10 Czech Republic 1 1%