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 187 68.5%
2 Netherlands 38 13.9%
3 United States 30 11%
4 Germany 6 2.2%
5 India 4 1.5%
6 Hong Kong 3 1.1%
7 Korea, Republic of 2 0.7%
8 Portugal 1 0.4%
9 Russia 1 0.4%
10 Sweden 1 0.4%