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 46 35.7%
2 United States 45 34.9%
3 Germany 13 10.1%
4 Netherlands 12 9.3%
5 Hong Kong 5 3.9%
6 Taiwan 3 2.3%
7 United Kingdom 1 0.8%
8 Portugal 1 0.8%
9 Russia 1 0.8%
10 France 1 0.8%
11 Canada 1 0.8%