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 98 50.3%
2 United States 53 27.2%
3 Netherlands 14 7.2%
4 Germany 13 6.7%
5 Hong Kong 5 2.6%
6 Russia 4 2.1%
7 Canada 3 1.5%
8 Taiwan 2 1%
9 Portugal 1 0.5%
10 Japan 1 0.5%
11 Moldova, Republic of 1 0.5%