BPG致力于知识的发现和传播
Total Visits of This Article
2020 | 总访问次数
排名 国家/地区 数量 占比
1 China 81 56.2%
2 United States 29 20.1%
3 Netherlands 15 10.4%
4 Germany 10 6.9%
5 Hong Kong 3 2.1%
6 Russia 3 2.1%
7 Sweden 1 0.7%
8 Portugal 1 0.7%
9 France 1 0.7%