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 95 52.8%
2 United States 21 11.7%
3 France 16 8.9%
4 Germany 13 7.2%
5 Netherlands 11 6.1%
6 South Africa 9 5%
7 Nigeria 5 2.8%
8 Hong Kong 5 2.8%
9 Taiwan 2 1.1%
10 Canada 2 1.1%
11 Portugal 1 0.6%