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 58 41.4%
2 United States 45 32.1%
3 Germany 14 10%
4 Netherlands 8 5.7%
5 France 4 2.9%
6 Hong Kong 3 2.1%
7 Taiwan 3 2.1%
8 Canada 2 1.4%
9 United Kingdom 1 0.7%
10 Portugal 1 0.7%
11 Switzerland 1 0.7%