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 61 45.5%
2 United States 23 17.2%
3 Germany 19 14.2%
4 Netherlands 11 8.2%
5 Hong Kong 7 5.2%
6 Taiwan 5 3.7%
7 3 2.2%
8 Russia 2 1.5%
9 Portugal 1 0.7%
10 Moldova, Republic of 1 0.7%
11 United Kingdom 1 0.7%